13900845 has 32 divisors (see below), whose sum is σ = 26046720. Its totient is φ = 6197760.

The previous prime is 13900829. The next prime is 13900853. The reversal of 13900845 is 54800931.

It is not a de Polignac number, because 13900845 - 2⁴ = 13900829 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2691 + ... + 5919.

It is an arithmetic number, because the mean of its divisors is an integer number (813960).

Almost surely, 2^13900845 is an apocalyptic number.

13900845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13900845 is a deficient number, since it is larger than the sum of its proper divisors (12145875).

13900845 is a wasteful number, since it uses less digits than its factorization.

13900845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 13900845 is about 3728.3836980654. The cubic root of 13900845 is about 240.4438833864.

The spelling of 13900845 in words is "thirteen million, nine hundred thousand, eight hundred forty-five".