22464880 has 20 divisors (see below), whose sum is σ = 52231032. Its totient is φ = 8985920.

The previous prime is 22464857. The next prime is 22464887. The reversal of 22464880 is 8846422.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22464887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140326 + ... + 140485.

Almost surely, 2^22464880 is an apocalyptic number.

22464880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22464880 is an abundant number, since it is smaller than the sum of its proper divisors (29766152).

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

22464880 is a wasteful number, since it uses less digits than its factorization.

22464880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280824 (or 280818 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 22464880 is about 4739.7130714844. The cubic root of 22464880 is about 282.1638469060.

The spelling of 22464880 in words is "twenty-two million, four hundred sixty-four thousand, eight hundred eighty".