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22240464 = 243463343
BaseRepresentation
bin101010011010…
…1110011010000
31112211221011220
41110311303100
521143143324
62112405040
7360020001
oct124656320
945757156
1022240464
1111610654
127546780
1347b914c
142d4d1a8
151e44b79
hex1535cd0

22240464 has 20 divisors (see below), whose sum is σ = 57454656. Its totient is φ = 7413472.

The previous prime is 22240457. The next prime is 22240499. The reversal of 22240464 is 46404222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231624 + ... + 231719.

Almost surely, 222240464 is an apocalyptic number.

22240464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22240464 is an abundant number, since it is smaller than the sum of its proper divisors (35214192).

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

22240464 is a wasteful number, since it uses less digits than its factorization.

22240464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463354 (or 463348 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 22240464 is about 4715.9796437220. The cubic root of 22240464 is about 281.2211292834.

Adding to 22240464 its reverse (46404222), we get a palindrome (68644686).

The spelling of 22240464 in words is "twenty-two million, two hundred forty thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 463343 926686 1390029 1853372 2780058 3706744 5560116 7413488 11120232 22240464