22913664 has 32 divisors (see below), whose sum is σ = 60865440. Its totient is φ = 7637760.

The previous prime is 22913663. The next prime is 22913669. The reversal of 22913664 is 46631922.

It is a tau number, because it is divible by the number of its divisors (32).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22913663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29452 + ... + 30219.

It is an arithmetic number, because the mean of its divisors is an integer number (1902045).

Almost surely, 2^22913664 is an apocalyptic number.

22913664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22913664 is an abundant number, since it is smaller than the sum of its proper divisors (37951776).

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

22913664 is an equidigital number, since it uses as much as digits as its factorization.

22913664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59688 (or 59676 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 22913664 is about 4786.8219102031. The cubic root of 22913664 is about 284.0304139881.

The spelling of 22913664 in words is "twenty-two million, nine hundred thirteen thousand, six hundred sixty-four".