13039690 has 16 divisors (see below), whose sum is σ = 23512680. Its totient is φ = 5206720.

The previous prime is 13039673. The next prime is 13039703. The reversal of 13039690 is 9693031.

13039690 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 4 ways, for example, as 13010449 + 29241 = 3607^2 + 171^2 .

It is a super-2 number, since 2×13039690² = 340067030592200, which contains 22 as substring.

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, 9996 + ... + 11224.

Almost surely, 2^13039690 is an apocalyptic number.

13039690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13039690 is a deficient number, since it is larger than the sum of its proper divisors (10472990).

13039690 is a wasteful number, since it uses less digits than its factorization.

13039690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 13039690 is about 3611.0510935183. The cubic root of 13039690 is about 235.3725191796.

The spelling of 13039690 in words is "thirteen million, thirty-nine thousand, six hundred ninety".