22546572 has 48 divisors (see below), whose sum is σ = 55292160. Its totient is φ = 7140672.

The previous prime is 22546553. The next prime is 22546591. The reversal of 22546572 is 27564522.

It is an interprime number because it is at equal distance from previous prime (22546553) and next prime (22546591).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22833 + ... + 23799.

It is an arithmetic number, because the mean of its divisors is an integer number (1151920).

Almost surely, 2^22546572 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 22546572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27646080).

22546572 is an abundant number, since it is smaller than the sum of its proper divisors (32745588).

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

22546572 is a wasteful number, since it uses less digits than its factorization.

22546572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1068 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 22546572 is about 4748.3230724120. The cubic root of 22546572 is about 282.5054563386.

The spelling of 22546572 in words is "twenty-two million, five hundred forty-six thousand, five hundred seventy-two".