13918472 has 16 divisors (see below), whose sum is σ = 26455740. Its totient is φ = 6863616.

The previous prime is 13918451. The next prime is 13918477. The reversal of 13918472 is 27481931.

It can be written as a sum of positive squares in 2 ways, for example, as 13060996 + 857476 = 3614^2 + 926^2 .

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 not an unprimeable number, because it can be changed into a prime (13918477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11333 + ... + 12500.

Almost surely, 2^13918472 is an apocalyptic number.

It is an amenable number.

13918472 is a deficient number, since it is larger than the sum of its proper divisors (12537268).

13918472 is a wasteful number, since it uses less digits than its factorization.

13918472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23912 (or 23908 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 13918472 is about 3730.7468421216. The cubic root of 13918472 is about 240.5454722737.

The spelling of 13918472 in words is "thirteen million, nine hundred eighteen thousand, four hundred seventy-two".