11431868 has 24 divisors (see below), whose sum is σ = 22936032. Its totient is φ = 4883904.

The previous prime is 11431841. The next prime is 11431879. The reversal of 11431868 is 86813411.

It is a happy number.

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, 15230 + ... + 15962.

It is an arithmetic number, because the mean of its divisors is an integer number (955668).

Almost surely, 2^11431868 is an apocalyptic number.

It is an amenable number.

11431868 is an abundant number, since it is smaller than the sum of its proper divisors (11504164).

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

11431868 is a wasteful number, since it uses less digits than its factorization.

11431868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1299 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 11431868 is about 3381.1045532488. The cubic root of 11431868 is about 225.2712317534.

The spelling of 11431868 in words is "eleven million, four hundred thirty-one thousand, eight hundred sixty-eight".