13394784 has 48 divisors (see below), whose sum is σ = 37869552. Its totient is φ = 4121088.

The previous prime is 13394761. The next prime is 13394813. The reversal of 13394784 is 48749331.

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 (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4119 + ... + 6614.

It is an arithmetic number, because the mean of its divisors is an integer number (788949).

Almost surely, 2^13394784 is an apocalyptic number.

It is an amenable number.

13394784 is an abundant number, since it is smaller than the sum of its proper divisors (24474768).

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

13394784 is a wasteful number, since it uses less digits than its factorization.

13394784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10759 (or 10751 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 13394784 is about 3659.8885228925. Note that the first 3 decimals coincide. The cubic root of 13394784 is about 237.4899511907.

The spelling of 13394784 in words is "thirteen million, three hundred ninety-four thousand, seven hundred eighty-four".