13904964 has 18 divisors (see below), whose sum is σ = 35148750. Its totient is φ = 4634976.

The previous prime is 13904959. The next prime is 13904981. The reversal of 13904964 is 46940931.

It can be written as a sum of positive squares in only one way, i.e., 13838400 + 66564 = 3720^2 + 258^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 386249 = 13904964 / (1 + 3 + 9 + 0 + 4 + 9 + 6 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 193089 + ... + 193160.

Almost surely, 2^13904964 is an apocalyptic number.

It is an amenable number.

13904964 is an abundant number, since it is smaller than the sum of its proper divisors (21243786).

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

13904964 is a wasteful number, since it uses less digits than its factorization.

13904964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386259 (or 386254 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 13904964 is about 3728.9360412858. The cubic root of 13904964 is about 240.4676299176.

The spelling of 13904964 in words is "thirteen million, nine hundred four thousand, nine hundred sixty-four".