13904442 has 24 divisors (see below), whose sum is σ = 30244500. Its totient is φ = 4616640.

The previous prime is 13904413. The next prime is 13904459. The reversal of 13904442 is 24440931.

It can be written as a sum of positive squares in 2 ways, for example, as 13682601 + 221841 = 3699^2 + 471^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3684 + ... + 6432.

Almost surely, 2^13904442 is an apocalyptic number.

13904442 is an abundant number, since it is smaller than the sum of its proper divisors (16340058).

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

13904442 is a wasteful number, since it uses less digits than its factorization.

13904442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038 (or 3035 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13904442 is about 3728.8660474734. The cubic root of 13904442 is about 240.4646207843.

It can be divided in two parts, 1390 and 4442, that added together give a cube (5832 = 18³).

The spelling of 13904442 in words is "thirteen million, nine hundred four thousand, four hundred forty-two".