11631860 has 24 divisors (see below), whose sum is σ = 24491040. Its totient is φ = 4640544.

The previous prime is 11631853. The next prime is 11631877. The reversal of 11631860 is 6813611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14387 + ... + 15173.

It is an arithmetic number, because the mean of its divisors is an integer number (1020460).

Almost surely, 2^11631860 is an apocalyptic number.

11631860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11631860 is an abundant number, since it is smaller than the sum of its proper divisors (12859180).

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

11631860 is a wasteful number, since it uses less digits than its factorization.

11631860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 11631860 is about 3410.5512750874. The cubic root of 11631860 is about 226.5772956013.

The spelling of 11631860 in words is "eleven million, six hundred thirty-one thousand, eight hundred sixty".