13990374 has 24 divisors (see below), whose sum is σ = 31150920. Its totient is φ = 4654296.

The previous prime is 13990373. The next prime is 13990399. The reversal of 13990374 is 47309931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13990373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27232 + ... + 27740.

It is an arithmetic number, because the mean of its divisors is an integer number (1297955).

Almost surely, 2^13990374 is an apocalyptic number.

13990374 is an abundant number, since it is smaller than the sum of its proper divisors (17160546).

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

13990374 is an frugal number, since it uses more digits than its factorization.

13990374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 13990374 is about 3740.3708372299. The cubic root of 13990374 is about 240.9589755873.

The spelling of 13990374 in words is "thirteen million, nine hundred ninety thousand, three hundred seventy-four".