22657242 has 16 divisors (see below), whose sum is σ = 45361440. Its totient is φ = 7544592.

The previous prime is 22657241. The next prime is 22657247. The reversal of 22657242 is 24275622.

It is not an unprimeable number, because it can be changed into a prime (22657241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9309 + ... + 11487.

It is an arithmetic number, because the mean of its divisors is an integer number (2835090).

Almost surely, 2^22657242 is an apocalyptic number.

22657242 is an abundant number, since it is smaller than the sum of its proper divisors (22704198).

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

22657242 is a wasteful number, since it uses less digits than its factorization.

22657242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917.

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

The square root of 22657242 is about 4759.9623948094. The cubic root of 22657242 is about 282.9669287563.

The spelling of 22657242 in words is "twenty-two million, six hundred fifty-seven thousand, two hundred forty-two".