13918910 has 32 divisors (see below), whose sum is σ = 26533440. Its totient is φ = 5246208.

The previous prime is 13918901. The next prime is 13918921. The reversal of 13918910 is 1981931.

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 15 ways as a sum of consecutive naturals, for example, 16376 + ... + 17204.

It is an arithmetic number, because the mean of its divisors is an integer number (829170).

Almost surely, 2^13918910 is an apocalyptic number.

13918910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13918910 is a deficient number, since it is larger than the sum of its proper divisors (12614530).

13918910 is a wasteful number, since it uses less digits than its factorization.

13918910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 13918910 is about 3730.8055430429. The cubic root of 13918910 is about 240.5479954868.

It can be divided in two parts, 1391 and 8910, that added together give a palindrome (10301).

The spelling of 13918910 in words is "thirteen million, nine hundred eighteen thousand, nine hundred ten".