13499808 has 48 divisors (see below), whose sum is σ = 40501440. Its totient is φ = 3856896.

The previous prime is 13499803. The next prime is 13499831. The reversal of 13499808 is 80899431.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 13499808.

It is not an unprimeable number, because it can be changed into a prime (13499803) 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, 9373 + ... + 10716.

It is an arithmetic number, because the mean of its divisors is an integer number (843780).

Almost surely, 2^13499808 is an apocalyptic number.

It is an amenable number.

13499808 is an abundant number, since it is smaller than the sum of its proper divisors (27001632).

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

13499808 is a wasteful number, since it uses less digits than its factorization.

13499808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20109 (or 20101 counting only the distinct ones).

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

The square root of 13499808 is about 3674.2084861913. The cubic root of 13499808 is about 238.1090289714.

The spelling of 13499808 in words is "thirteen million, four hundred ninety-nine thousand, eight hundred eight".