13864744 has 16 divisors (see below), whose sum is σ = 26353620. Its totient is φ = 6837120.

The previous prime is 13864703. The next prime is 13864759. The reversal of 13864744 is 44746831.

13864744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11819844 + 2044900 = 3438^2 + 1430^2 .

It is a super-2 number, since 2×13864744² = 384462252371072, which contains 22 as substring.

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, 11287 + ... + 12454.

Almost surely, 2^13864744 is an apocalyptic number.

It is an amenable number.

13864744 is a deficient number, since it is larger than the sum of its proper divisors (12488876).

13864744 is a wasteful number, since it uses less digits than its factorization.

13864744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23820 (or 23816 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 13864744 is about 3723.5391766436. The cubic root of 13864744 is about 240.2355557676.

The spelling of 13864744 in words is "thirteen million, eight hundred sixty-four thousand, seven hundred forty-four".