22272504 has 32 divisors (see below), whose sum is σ = 55842000. Its totient is φ = 7402752.

The previous prime is 22272473. The next prime is 22272521. The reversal of 22272504 is 40527222.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 8682 + ... + 10950.

Almost surely, 2^22272504 is an apocalyptic number.

22272504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22272504 is an abundant number, since it is smaller than the sum of its proper divisors (33569496).

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

22272504 is a wasteful number, since it uses less digits than its factorization.

22272504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687 (or 2683 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 22272504 is about 4719.3753823997. The cubic root of 22272504 is about 281.3561085061.

Adding to 22272504 its reverse (40527222), we get a palindrome (62799726).

The spelling of 22272504 in words is "twenty-two million, two hundred seventy-two thousand, five hundred four".