10809880 has 32 divisors (see below), whose sum is σ = 24786000. Its totient is φ = 4241536.

The previous prime is 10809853. The next prime is 10809881. The reversal of 10809880 is 8890801.

It is a super-2 number, since 2×10809880² = 233707011228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10809881) 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, 430 + ... + 4669.

Almost surely, 2^10809880 is an apocalyptic number.

10809880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10809880 is an abundant number, since it is smaller than the sum of its proper divisors (13976120).

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

10809880 is a wasteful number, since it uses less digits than its factorization.

10809880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5163 (or 5159 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 10809880 is about 3287.8381955321. The cubic root of 10809880 is about 221.1092735066.

The spelling of 10809880 in words is "ten million, eight hundred nine thousand, eight hundred eighty".