13993490 has 32 divisors (see below), whose sum is σ = 29462400. Its totient is φ = 4685184.

The previous prime is 13993489. The next prime is 13993513. The reversal of 13993490 is 9439931.

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, 686 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (920700).

Almost surely, 2^13993490 is an apocalyptic number.

13993490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13993490 is an abundant number, since it is smaller than the sum of its proper divisors (15468910).

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

13993490 is a wasteful number, since it uses less digits than its factorization.

13993490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 13993490 is about 3740.7873502780. The cubic root of 13993490 is about 240.9768634206.

The spelling of 13993490 in words is "thirteen million, nine hundred ninety-three thousand, four hundred ninety".