11438864 has 20 divisors (see below), whose sum is σ = 22220304. Its totient is φ = 5704608.

The previous prime is 11438857. The next prime is 11438873. The reversal of 11438864 is 46883411.

It is a super-2 number, since 2×11438864² = 261695219220992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 8099 + ... + 9405.

Almost surely, 2^11438864 is an apocalyptic number.

It is an amenable number.

11438864 is a deficient number, since it is larger than the sum of its proper divisors (10781440).

11438864 is a wasteful number, since it uses less digits than its factorization.

11438864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862 (or 1856 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 11438864 is about 3382.1389681679. The cubic root of 11438864 is about 225.3171757221.

The spelling of 11438864 in words is "eleven million, four hundred thirty-eight thousand, eight hundred sixty-four".