13078690 has 16 divisors (see below), whose sum is σ = 24043392. Its totient is φ = 5119984.

The previous prime is 13078679. The next prime is 13078691. The reversal of 13078690 is 9687031.

It is a super-2 number, since 2×13078690² = 342104264232200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13078691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13444 + ... + 14383.

It is an arithmetic number, because the mean of its divisors is an integer number (1502712).

Almost surely, 2^13078690 is an apocalyptic number.

13078690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13078690 is a deficient number, since it is larger than the sum of its proper divisors (10964702).

13078690 is a wasteful number, since it uses less digits than its factorization.

13078690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27881.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 13078690 is about 3616.4471515563. The cubic root of 13078690 is about 235.6069417217.

The spelling of 13078690 in words is "thirteen million, seventy-eight thousand, six hundred ninety".