13690408 has 16 divisors (see below), whose sum is σ = 25764480. Its totient is φ = 6819888.

The previous prime is 13690403. The next prime is 13690409. The reversal of 13690408 is 80409631.

It is a self number, because there is not a number n which added to its sum of digits gives 13690408.

It is not an unprimeable number, because it can be changed into a prime (13690403) 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, 760 + ... + 5287.

It is an arithmetic number, because the mean of its divisors is an integer number (1610280).

Almost surely, 2^13690408 is an apocalyptic number.

It is an amenable number.

13690408 is a deficient number, since it is larger than the sum of its proper divisors (12074072).

13690408 is a wasteful number, since it uses less digits than its factorization.

13690408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336 (or 6332 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 13690408 is about 3700.0551347243. The cubic root of 13690408 is about 239.2243943309.

The spelling of 13690408 in words is "thirteen million, six hundred ninety thousand, four hundred eight".