13039402 has 8 divisors (see below), whose sum is σ = 19577412. Its totient is φ = 6513600.

The previous prime is 13039399. The next prime is 13039417. The reversal of 13039402 is 20493031.

It can be written as a sum of positive squares in 2 ways, for example, as 13039321 + 81 = 3611^2 + 9^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402 + ... + 5122.

Almost surely, 2^13039402 is an apocalyptic number.

13039402 is a deficient number, since it is larger than the sum of its proper divisors (6538010).

13039402 is a wasteful number, since it uses less digits than its factorization.

13039402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6104.

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

The square root of 13039402 is about 3611.0112157123. The cubic root of 13039402 is about 235.3707863218.

The spelling of 13039402 in words is "thirteen million, thirty-nine thousand, four hundred two".