13404864 has 84 divisors (see below), whose sum is σ = 39051992. Its totient is φ = 4055040.

The previous prime is 13404829. The next prime is 13404877. The reversal of 13404864 is 46840431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22944 + ... + 23520.

Almost surely, 2^13404864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13404864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19525996).

13404864 is an abundant number, since it is smaller than the sum of its proper divisors (25647128).

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

13404864 is a wasteful number, since it uses less digits than its factorization.

13404864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 13404864 is about 3661.2653550378. The cubic root of 13404864 is about 237.5495091615.

The spelling of 13404864 in words is "thirteen million, four hundred four thousand, eight hundred sixty-four".