13406664 has 16 divisors (see below), whose sum is σ = 33516720. Its totient is φ = 4468880.

The previous prime is 13406651. The next prime is 13406711. The reversal of 13406664 is 46660431.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279282 + ... + 279329.

It is an arithmetic number, because the mean of its divisors is an integer number (2094795).

Almost surely, 2^13406664 is an apocalyptic number.

It is an amenable number.

13406664 is an abundant number, since it is smaller than the sum of its proper divisors (20110056).

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

13406664 is a wasteful number, since it uses less digits than its factorization.

13406664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558620 (or 558616 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 13406664 is about 3661.5111634406. The cubic root of 13406664 is about 237.5601413713.

The spelling of 13406664 in words is "thirteen million, four hundred six thousand, six hundred sixty-four".