13004392 has 16 divisors (see below), whose sum is σ = 24443460. Its totient is φ = 6486144.

The previous prime is 13004389. The next prime is 13004393. The reversal of 13004392 is 29340031.

13004392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13003236 + 1156 = 3606^2 + 34^2 .

It is a super-2 number, since 2×13004392² = 338228422579328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13004393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1878 + ... + 5434.

Almost surely, 2^13004392 is an apocalyptic number.

It is an amenable number.

13004392 is a deficient number, since it is larger than the sum of its proper divisors (11439068).

13004392 is a wasteful number, since it uses less digits than its factorization.

13004392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020 (or 4016 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13004392 is about 3606.1602848459. The cubic root of 13004392 is about 235.1599454366.

The spelling of 13004392 in words is "thirteen million, four thousand, three hundred ninety-two".