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1226664 = 2335631
BaseRepresentation
bin100101011011110101000
32022022200000
410223132220
5303223124
642143000
713266165
oct4533650
92268600
101226664
1176867a
124b1a60
1333c44a
1423d06c
151936c9
hex12b7a8

1226664 has 48 divisors (see below), whose sum is σ = 3450720. Its totient is φ = 408240.

The previous prime is 1226663. The next prime is 1226677. The reversal of 1226664 is 4666221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1226663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1629 + ... + 2259.

It is an arithmetic number, because the mean of its divisors is an integer number (71890).

21226664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1725360).

1226664 is an abundant number, since it is smaller than the sum of its proper divisors (2224056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226664 is an equidigital number, since it uses as much as digits as its factorization.

1226664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 636 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1226664 is about 1107.5486445299. The cubic root of 1226664 is about 107.0471740049.

It can be divided in two parts, 122 and 6664, that added together give a triangular number (6786 = T116).

The spelling of 1226664 in words is "one million, two hundred twenty-six thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 631 648 972 1262 1893 1944 2524 3786 5048 5679 7572 11358 15144 17037 22716 34074 45432 51111 68148 102222 136296 153333 204444 306666 408888 613332 1226664