22232504 has 32 divisors (see below), whose sum is σ = 48660480. Its totient is φ = 9324384.

The previous prime is 22232503. The next prime is 22232521. The reversal of 22232504 is 40523222.

It is a super-2 number, since 2×22232504² = 988568468220032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22232501) 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, 1592 + ... + 6855.

It is an arithmetic number, because the mean of its divisors is an integer number (1520640).

Almost surely, 2^22232504 is an apocalyptic number.

It is an amenable number.

22232504 is an abundant number, since it is smaller than the sum of its proper divisors (26427976).

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

22232504 is a wasteful number, since it uses less digits than its factorization.

22232504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507 (or 8503 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 22232504 is about 4715.1356290143. The cubic root of 22232504 is about 281.1875750179.

Adding to 22232504 its reverse (40523222), we get a palindrome (62755726).

The spelling of 22232504 in words is "twenty-two million, two hundred thirty-two thousand, five hundred four".