13813960 has 32 divisors (see below), whose sum is σ = 31217400. Its totient is φ = 5501440.

The previous prime is 13813951. The next prime is 13813963. The reversal of 13813960 is 6931831.

It can be written as a sum of positive squares in 4 ways, for example, as 13793796 + 20164 = 3714^2 + 142^2 .

It is not an unprimeable number, because it can be changed into a prime (13813963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10626 + ... + 11854.

Almost surely, 2^13813960 is an apocalyptic number.

13813960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13813960 is an abundant number, since it is smaller than the sum of its proper divisors (17403440).

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

13813960 is a wasteful number, since it uses less digits than its factorization.

13813960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521 (or 1517 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 13813960 is about 3716.7136020953. The cubic root of 13813960 is about 239.9418840765.

The spelling of 13813960 in words is "thirteen million, eight hundred thirteen thousand, nine hundred sixty".