13990494 has 16 divisors (see below), whose sum is σ = 31978368. Its totient is φ = 3997272.

The previous prime is 13990481. The next prime is 13990511. The reversal of 13990494 is 49409931.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166512 + ... + 166595.

It is an arithmetic number, because the mean of its divisors is an integer number (1998648).

Almost surely, 2^13990494 is an apocalyptic number.

13990494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13990494 is an abundant number, since it is smaller than the sum of its proper divisors (17987874).

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

13990494 is a wasteful number, since it uses less digits than its factorization.

13990494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333119.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 13990494 is about 3740.3868783857. The cubic root of 13990494 is about 240.9596645132.

The spelling of 13990494 in words is "thirteen million, nine hundred ninety thousand, four hundred ninety-four".