22564704 has 96 divisors (see below), whose sum is σ = 63504000. Its totient is φ = 6994944.

The previous prime is 22564699. The next prime is 22564741. The reversal of 22564704 is 40746522.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 162267 + ... + 162405.

It is an arithmetic number, because the mean of its divisors is an integer number (661500).

Almost surely, 2^22564704 is an apocalyptic number.

22564704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22564704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31752000).

22564704 is an abundant number, since it is smaller than the sum of its proper divisors (40939296).

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

22564704 is a wasteful number, since it uses less digits than its factorization.

22564704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 22564704 is about 4750.2319943346. The cubic root of 22564704 is about 282.5811665382.

The spelling of 22564704 in words is "twenty-two million, five hundred sixty-four thousand, seven hundred four".