13904070 has 32 divisors (see below), whose sum is σ = 33488640. Its totient is φ = 3694560.

The previous prime is 13904047. The next prime is 13904083. The reversal of 13904070 is 7040931.

It is a self number, because there is not a number n which added to its sum of digits gives 13904070.

It is a congruent number.

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, 10125 + ... + 11415.

It is an arithmetic number, because the mean of its divisors is an integer number (1046520).

Almost surely, 2^13904070 is an apocalyptic number.

13904070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13904070 is an abundant number, since it is smaller than the sum of its proper divisors (19584570).

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

13904070 is a wasteful number, since it uses less digits than its factorization.

13904070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 13904070 is about 3728.8161660237. The cubic root of 13904070 is about 240.4624762984.

It can be divided in two parts, 1390 and 4070, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 13904070 in words is "thirteen million, nine hundred four thousand, seventy".