13904917040 has 80 divisors (see below), whose sum is σ = 37573666560. Its totient is φ = 4686585600.

The previous prime is 13904917031. The next prime is 13904917057. The reversal of 13904917040 is 4071940931.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 13904916985 and 13904917003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177386 + ... + 243465.

It is an arithmetic number, because the mean of its divisors is an integer number (469670832).

Almost surely, 2^13904917040 is an apocalyptic number.

13904917040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13904917040 is an abundant number, since it is smaller than the sum of its proper divisors (23668749520).

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

13904917040 is a wasteful number, since it uses less digits than its factorization.

13904917040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420930 (or 420924 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 13904917040 in words is "thirteen billion, nine hundred four million, nine hundred seventeen thousand, forty".