13899760 has 40 divisors (see below), whose sum is σ = 36935136. Its totient is φ = 4765440.

The previous prime is 13899757. The next prime is 13899799. The reversal of 13899760 is 6799831.

13899760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 11851 + ... + 12970.

Almost surely, 2^13899760 is an apocalyptic number.

13899760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13899760 is an abundant number, since it is smaller than the sum of its proper divisors (23035376).

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

13899760 is a wasteful number, since it uses less digits than its factorization.

13899760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24841 (or 24835 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 13899760 is about 3728.2381898157. The cubic root of 13899760 is about 240.4376274501.

The spelling of 13899760 in words is "thirteen million, eight hundred ninety-nine thousand, seven hundred sixty".