22504542 has 16 divisors (see below), whose sum is σ = 45858960. Its totient is φ = 7359872.

The previous prime is 22504541. The next prime is 22504577. The reversal of 22504542 is 24540522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22504541) 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, 35067 + ... + 35702.

It is an arithmetic number, because the mean of its divisors is an integer number (2866185).

Almost surely, 2^22504542 is an apocalyptic number.

22504542 is an abundant number, since it is smaller than the sum of its proper divisors (23354418).

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

22504542 is a wasteful number, since it uses less digits than its factorization.

22504542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70827.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 22504542 is about 4743.8952349309. The cubic root of 22504542 is about 282.3298037668.

The spelling of 22504542 in words is "twenty-two million, five hundred four thousand, five hundred forty-two".