22570542 has 64 divisors (see below), whose sum is σ = 52684800. Its totient is φ = 7153920.

The previous prime is 22570531. The next prime is 22570579. The reversal of 22570542 is 24507522.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162309 + ... + 162447.

It is an arithmetic number, because the mean of its divisors is an integer number (823200).

Almost surely, 2^22570542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22570542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26342400).

22570542 is an abundant number, since it is smaller than the sum of its proper divisors (30114258).

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

22570542 is a wasteful number, since it uses less digits than its factorization.

22570542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 22570542 is about 4750.8464508969. The cubic root of 22570542 is about 282.6055344862.

The spelling of 22570542 in words is "twenty-two million, five hundred seventy thousand, five hundred forty-two".