13718990 has 8 divisors (see below), whose sum is σ = 24694200. Its totient is φ = 5487592.

The previous prime is 13718989. The next prime is 13719029. The reversal of 13718990 is 9981731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685940 + ... + 685959.

It is an arithmetic number, because the mean of its divisors is an integer number (3086775).

Almost surely, 2^13718990 is an apocalyptic number.

13718990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13718990 is a deficient number, since it is larger than the sum of its proper divisors (10975210).

13718990 is a wasteful number, since it uses less digits than its factorization.

13718990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371906.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 13718990 is about 3703.9154957963. The cubic root of 13718990 is about 239.3907579834.

The spelling of 13718990 in words is "thirteen million, seven hundred eighteen thousand, nine hundred ninety".