22403964 has 48 divisors (see below), whose sum is σ = 60036480. Its totient is φ = 6431040.

The previous prime is 22403951. The next prime is 22403971. The reversal of 22403964 is 46930422.

22403964 is nontrivially palindromic in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1959 + ... + 6974.

It is an arithmetic number, because the mean of its divisors is an integer number (1250760).

Almost surely, 2^22403964 is an apocalyptic number.

It is an amenable number.

22403964 is an abundant number, since it is smaller than the sum of its proper divisors (37632516).

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

22403964 is a wasteful number, since it uses less digits than its factorization.

22403964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8970 (or 8968 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 22403964 is about 4733.2825818875. The cubic root of 22403964 is about 281.9085765710.

The spelling of 22403964 in words is "twenty-two million, four hundred three thousand, nine hundred sixty-four".