13313808 has 50 divisors (see below), whose sum is σ = 38537774. Its totient is φ = 4437504.

The previous prime is 13313801. The next prime is 13313809. The reversal of 13313808 is 80831331.

It can be written as a sum of positive squares in only one way, i.e., 9809424 + 3504384 = 3132^2 + 1872^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13313801) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3841 + ... + 6432.

Almost surely, 2^13313808 is an apocalyptic number.

13313808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13313808 is an abundant number, since it is smaller than the sum of its proper divisors (25223966).

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

13313808 is a wasteful number, since it uses less digits than its factorization.

13313808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10293 (or 10278 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13313808 is about 3648.8091207954. The cubic root of 13313808 is about 237.0104145399.

The spelling of 13313808 in words is "thirteen million, three hundred thirteen thousand, eight hundred eight".