22894564 has 96 divisors (see below), whose sum is σ = 53625600. Its totient is φ = 8467200.

The previous prime is 22894559. The next prime is 22894567. The reversal of 22894564 is 46549822.

It is a super-2 number, since 2×22894564² = 1048322121500192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22894567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 558384 + ... + 558424.

It is an arithmetic number, because the mean of its divisors is an integer number (558600).

Almost surely, 2^22894564 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 22894564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26812800).

22894564 is an abundant number, since it is smaller than the sum of its proper divisors (30731036).

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

22894564 is a wasteful number, since it uses less digits than its factorization.

22894564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 98 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 22894564 is about 4784.8264336337. The cubic root of 22894564 is about 283.9514728962.

The spelling of 22894564 in words is "twenty-two million, eight hundred ninety-four thousand, five hundred sixty-four".