13942520 has 16 divisors (see below), whose sum is σ = 31370760. Its totient is φ = 5576992.

The previous prime is 13942519. The next prime is 13942547. The reversal of 13942520 is 2524931.

It is a self number, because there is not a number n which added to its sum of digits gives 13942520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174242 + ... + 174321.

Almost surely, 2^13942520 is an apocalyptic number.

13942520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13942520 is an abundant number, since it is smaller than the sum of its proper divisors (17428240).

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

13942520 is a wasteful number, since it uses less digits than its factorization.

13942520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348574 (or 348570 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13942520 is about 3733.9683983665. The cubic root of 13942520 is about 240.6839287842.

The spelling of 13942520 in words is "thirteen million, nine hundred forty-two thousand, five hundred twenty".