13979264 has 64 divisors (see below), whose sum is σ = 31073280. Its totient is φ = 6220800.

The previous prime is 13979249. The next prime is 13979279. The reversal of 13979264 is 46297931.

It is an interprime number because it is at equal distance from previous prime (13979249) and next prime (13979279).

It is a tau number, because it is divible by the number of its divisors (64).

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, 51449 + ... + 51719.

It is an arithmetic number, because the mean of its divisors is an integer number (485520).

Almost surely, 2^13979264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13979264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15536640).

13979264 is an abundant number, since it is smaller than the sum of its proper divisors (17094016).

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

13979264 is a wasteful number, since it uses less digits than its factorization.

13979264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 317 counting only the distinct ones).

The product of its digits is 81648, while the sum is 41.

The square root of 13979264 is about 3738.8853954086. The cubic root of 13979264 is about 240.8951754544.

The spelling of 13979264 in words is "thirteen million, nine hundred seventy-nine thousand, two hundred sixty-four".