13994880 has 128 divisors (see below), whose sum is σ = 46046880. Its totient is φ = 3612672.

The previous prime is 13994873. The next prime is 13994923. The reversal of 13994880 is 8849931.

It is a tau number, because it is divible by the number of its divisors (128).

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, 70942 + ... + 71138.

Almost surely, 2^13994880 is an apocalyptic number.

13994880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13994880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23023440).

13994880 is an abundant number, since it is smaller than the sum of its proper divisors (32052000).

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

13994880 is a wasteful number, since it uses less digits than its factorization.

13994880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 13994880 is about 3740.9731354288. The cubic root of 13994880 is about 240.9848420533.

The spelling of 13994880 in words is "thirteen million, nine hundred ninety-four thousand, eight hundred eighty".