13990955 has 16 divisors (see below), whose sum is σ = 18468864. Its totient is φ = 10090080.

The previous prime is 13990943. The next prime is 13990987. The reversal of 13990955 is 55909931.

It is not a de Polignac number, because 13990955 - 2⁶ = 13990891 is a prime.

It is a Duffinian 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, 5984 + ... + 7986.

It is an arithmetic number, because the mean of its divisors is an integer number (1154304).

Almost surely, 2^13990955 is an apocalyptic number.

13990955 is a deficient number, since it is larger than the sum of its proper divisors (4477909).

13990955 is a wasteful number, since it uses less digits than its factorization.

13990955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146.

The product of its (nonzero) digits is 54675, while the sum is 41.

The square root of 13990955 is about 3740.4485025195. The cubic root of 13990955 is about 240.9623111004.

The spelling of 13990955 in words is "thirteen million, nine hundred ninety thousand, nine hundred fifty-five".