13439404 has 12 divisors (see below), whose sum is σ = 25657128. Its totient is φ = 6108800.

The previous prime is 13439381. The next prime is 13439407. The reversal of 13439404 is 40493431.

It is not an unprimeable number, because it can be changed into a prime (13439407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152677 + ... + 152764.

It is an arithmetic number, because the mean of its divisors is an integer number (2138094).

Almost surely, 2^13439404 is an apocalyptic number.

It is an amenable number.

13439404 is a deficient number, since it is larger than the sum of its proper divisors (12217724).

13439404 is a wasteful number, since it uses less digits than its factorization.

13439404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305456 (or 305454 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 13439404 is about 3665.9792688994. The cubic root of 13439404 is about 237.7533635968.

The spelling of 13439404 in words is "thirteen million, four hundred thirty-nine thousand, four hundred four".