22456880 has 20 divisors (see below), whose sum is σ = 52212432. Its totient is φ = 8982720.

The previous prime is 22456877. The next prime is 22456897. The reversal of 22456880 is 8865422.

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

It is a super-2 number, since 2×22456880² = 1008622918668800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22456880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140276 + ... + 140435.

Almost surely, 2^22456880 is an apocalyptic number.

22456880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22456880 is an abundant number, since it is smaller than the sum of its proper divisors (29755552).

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

22456880 is a wasteful number, since it uses less digits than its factorization.

22456880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280724 (or 280718 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 22456880 is about 4738.8690633948. The cubic root of 22456880 is about 282.1303490079.

The spelling of 22456880 in words is "twenty-two million, four hundred fifty-six thousand, eight hundred eighty".