13900540 has 24 divisors (see below), whose sum is σ = 29261232. Its totient is φ = 5546880.

The previous prime is 13900519. The next prime is 13900553. The reversal of 13900540 is 4500931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15792 + ... + 16648.

It is an arithmetic number, because the mean of its divisors is an integer number (1219218).

Almost surely, 2^13900540 is an apocalyptic number.

13900540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13900540 is an abundant number, since it is smaller than the sum of its proper divisors (15360692).

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

13900540 is a wasteful number, since it uses less digits than its factorization.

13900540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 13900540 is about 3728.3427953985. The cubic root of 13900540 is about 240.4421248381.

The spelling of 13900540 in words is "thirteen million, nine hundred thousand, five hundred forty".