13900918 has 8 divisors (see below), whose sum is σ = 21570480. Its totient is φ = 6710760.

The previous prime is 13900871. The next prime is 13900963. The reversal of 13900918 is 81900931.

13900918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 13900918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119778 + ... + 119893.

It is an arithmetic number, because the mean of its divisors is an integer number (2696310).

Almost surely, 2^13900918 is an apocalyptic number.

13900918 is a deficient number, since it is larger than the sum of its proper divisors (7669562).

13900918 is a wasteful number, since it uses less digits than its factorization.

13900918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239702.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 13900918 is about 3728.3934878175. The cubic root of 13900918 is about 240.4443042810. Note that the first 3 decimals are identical.

The spelling of 13900918 in words is "thirteen million, nine hundred thousand, nine hundred eighteen".