11890880 has 28 divisors (see below), whose sum is σ = 28315920. Its totient is φ = 4756224.

The previous prime is 11890873. The next prime is 11890891. The reversal of 11890880 is 8809811.

It is a self number, because there is not a number n which added to its sum of digits gives 11890880.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18260 + ... + 18899.

Almost surely, 2^11890880 is an apocalyptic number.

11890880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11890880 is an abundant number, since it is smaller than the sum of its proper divisors (16425040).

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

11890880 is an equidigital number, since it uses as much as digits as its factorization.

11890880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37176 (or 37166 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 35.

The square root of 11890880 is about 3448.3155308063. The cubic root of 11890880 is about 228.2467831644.

The spelling of 11890880 in words is "eleven million, eight hundred ninety thousand, eight hundred eighty".