13407816 has 32 divisors (see below), whose sum is σ = 33717600. Its totient is φ = 4442880.

The previous prime is 13407811. The next prime is 13407833. The reversal of 13407816 is 61870431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13407811) 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, 2736 + ... + 5856.

It is an arithmetic number, because the mean of its divisors is an integer number (1053675).

Almost surely, 2^13407816 is an apocalyptic number.

It is an amenable number.

13407816 is an abundant number, since it is smaller than the sum of its proper divisors (20309784).

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

13407816 is a wasteful number, since it uses less digits than its factorization.

13407816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309 (or 3305 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 13407816 is about 3661.6684721586. The cubic root of 13407816 is about 237.5669454862.

The spelling of 13407816 in words is "thirteen million, four hundred seven thousand, eight hundred sixteen".