13919680 has 28 divisors (see below), whose sum is σ = 33147000. Its totient is φ = 5567744.

The previous prime is 13919663. The next prime is 13919683. The reversal of 13919680 is 8691931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13919683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21430 + ... + 22069.

Almost surely, 2^13919680 is an apocalyptic number.

13919680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13919680 is an abundant number, since it is smaller than the sum of its proper divisors (19227320).

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

13919680 is an equidigital number, since it uses as much as digits as its factorization.

13919680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43516 (or 43506 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 13919680 is about 3730.9087364877. The cubic root of 13919680 is about 240.5524311440.

The spelling of 13919680 in words is "thirteen million, nine hundred nineteen thousand, six hundred eighty".