13918998 has 16 divisors (see below), whose sum is σ = 27878400. Its totient is φ = 4632936.

The previous prime is 13918997. The next prime is 13918999. The reversal of 13918998 is 89981931.

It is an interprime number because it is at equal distance from previous prime (13918997) and next prime (13918999).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13918997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4603 + ... + 7001.

It is an arithmetic number, because the mean of its divisors is an integer number (1742400).

Almost surely, 2^13918998 is an apocalyptic number.

13918998 is an abundant number, since it is smaller than the sum of its proper divisors (13959402).

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

13918998 is a wasteful number, since it uses less digits than its factorization.

13918998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371.

The product of its digits is 139968, while the sum is 48.

The square root of 13918998 is about 3730.8173367240. The cubic root of 13918998 is about 240.5485024273.

The spelling of 13918998 in words is "thirteen million, nine hundred eighteen thousand, nine hundred ninety-eight".