13939140 has 48 divisors (see below), whose sum is σ = 40380480. Its totient is φ = 3588480.

The previous prime is 13939117. The next prime is 13939153. The reversal of 13939140 is 4193931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13939098 and 13939107.

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 15 ways as a sum of consecutive naturals, for example, 2266 + ... + 5745.

It is an arithmetic number, because the mean of its divisors is an integer number (841260).

Almost surely, 2^13939140 is an apocalyptic number.

13939140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13939140 is an abundant number, since it is smaller than the sum of its proper divisors (26441340).

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

13939140 is a wasteful number, since it uses less digits than its factorization.

13939140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8052 (or 8050 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 13939140 is about 3733.5157693520. The cubic root of 13939140 is about 240.6644780339.

The spelling of 13939140 in words is "thirteen million, nine hundred thirty-nine thousand, one hundred forty".