1224630 has 48 divisors (see below), whose sum is σ = 3476304. Its totient is φ = 296640.

The previous prime is 1224599. The next prime is 1224637. The reversal of 1224630 is 364221.

It is a happy number.

1224630 is a `hidden beast` number, since 12 + 24 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 372 + ... + 1608.

It is an arithmetic number, because the mean of its divisors is an integer number (72423).

2^1224630 is an apocalyptic number.

1224630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1738152).

1224630 is an abundant number, since it is smaller than the sum of its proper divisors (2251674).

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

1224630 is a wasteful number, since it uses less digits than its factorization.

1224630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1224630 is about 1106.6300194735. The cubic root of 1224630 is about 106.9879743087.

Adding to 1224630 its reverse (364221), we get a palindrome (1588851).

It can be divided in two parts, 12 and 24630, that added together give a palindrome (24642).

The spelling of 1224630 in words is "one million, two hundred twenty-four thousand, six hundred thirty".