13402039 has 16 divisors (see below), whose sum is σ = 16027200. Its totient is φ = 11195520.

The previous prime is 13402033. The next prime is 13402043. The reversal of 13402039 is 93020431.

It is not a de Polignac number, because 13402039 - 2⁵ = 13402007 is a prime.

It is a super-2 number, since 2×13402039² = 359229298715042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13587 + ... + 14539.

It is an arithmetic number, because the mean of its divisors is an integer number (1001700).

Almost surely, 2^13402039 is an apocalyptic number.

13402039 is a deficient number, since it is larger than the sum of its proper divisors (2625161).

13402039 is an frugal number, since it uses more digits than its factorization.

13402039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1001 counting only the distinct ones).

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

The square root of 13402039 is about 3660.8795391272. The cubic root of 13402039 is about 237.5328205797.

The spelling of 13402039 in words is "thirteen million, four hundred two thousand, thirty-nine".