22042504 has 32 divisors (see below), whose sum is σ = 45267840. Its totient is φ = 9979200.

The previous prime is 22042477. The next prime is 22042511. The reversal of 22042504 is 40524022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40474 + ... + 41014.

It is an arithmetic number, because the mean of its divisors is an integer number (1414620).

Almost surely, 2^22042504 is an apocalyptic number.

It is an amenable number.

22042504 is an abundant number, since it is smaller than the sum of its proper divisors (23225336).

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

22042504 is a wasteful number, since it uses less digits than its factorization.

22042504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1017 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22042504 is about 4694.9445151141. The cubic root of 22042504 is about 280.3842683123.

Adding to 22042504 its reverse (40524022), we get a palindrome (62566526).

It can be divided in two parts, 220 and 42504, that added together give a palindrome (42724).

The spelling of 22042504 in words is "twenty-two million, forty-two thousand, five hundred four".