13931946 has 32 divisors (see below), whose sum is σ = 35383680. Its totient is φ = 3980448.

The previous prime is 13931933. The next prime is 13931987. The reversal of 13931946 is 64913931.

13931946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13931946.

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, 18051 + ... + 18806.

It is an arithmetic number, because the mean of its divisors is an integer number (1105740).

Almost surely, 2^13931946 is an apocalyptic number.

13931946 is an abundant number, since it is smaller than the sum of its proper divisors (21451734).

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

13931946 is a wasteful number, since it uses less digits than its factorization.

13931946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36875 (or 36869 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 13931946 is about 3732.5522099496. The cubic root of 13931946 is about 240.6230685402.

The spelling of 13931946 in words is "thirteen million, nine hundred thirty-one thousand, nine hundred forty-six".