13998894 has 32 divisors (see below), whose sum is σ = 34460160. Its totient is φ = 3691872.

The previous prime is 13998889. The next prime is 13998911. The reversal of 13998894 is 49889931.

It is a happy number.

It is a congruent number.

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, 12274 + ... + 13365.

It is an arithmetic number, because the mean of its divisors is an integer number (1076880).

Almost surely, 2^13998894 is an apocalyptic number.

13998894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13998894 is an abundant number, since it is smaller than the sum of its proper divisors (20461266).

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

13998894 is a wasteful number, since it uses less digits than its factorization.

13998894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25664.

The product of its digits is 559872, while the sum is 51.

The square root of 13998894 is about 3741.5095883881. The cubic root of 13998894 is about 241.0078795424.

The spelling of 13998894 in words is "thirteen million, nine hundred ninety-eight thousand, eight hundred ninety-four".