13998504 has 32 divisors (see below), whose sum is σ = 37689120. Its totient is φ = 4307136.

The previous prime is 13998493. The next prime is 13998557. The reversal of 13998504 is 40589931.

13998504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13998504² = 391916228476032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22122 + ... + 22745.

It is an arithmetic number, because the mean of its divisors is an integer number (1177785).

Almost surely, 2^13998504 is an apocalyptic number.

It is an amenable number.

13998504 is an abundant number, since it is smaller than the sum of its proper divisors (23690616).

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

13998504 is a wasteful number, since it uses less digits than its factorization.

13998504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44889 (or 44885 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 13998504 is about 3741.4574700242. The cubic root of 13998504 is about 241.0056414145.

The spelling of 13998504 in words is "thirteen million, nine hundred ninety-eight thousand, five hundred four".