13440872 has 16 divisors (see below), whose sum is σ = 25738560. Its totient is φ = 6577264.

The previous prime is 13440859. The next prime is 13440881. The reversal of 13440872 is 27804431.

13440872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 17498 + ... + 18249.

It is an arithmetic number, because the mean of its divisors is an integer number (1608660).

Almost surely, 2^13440872 is an apocalyptic number.

It is an amenable number.

13440872 is a deficient number, since it is larger than the sum of its proper divisors (12297688).

13440872 is a wasteful number, since it uses less digits than its factorization.

13440872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35800 (or 35796 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 13440872 is about 3666.1794827859. The cubic root of 13440872 is about 237.7620199636.

The spelling of 13440872 in words is "thirteen million, four hundred forty thousand, eight hundred seventy-two".