13078390 has 32 divisors (see below), whose sum is σ = 26046720. Its totient is φ = 4696704.

The previous prime is 13078381. The next prime is 13078397. The reversal of 13078390 is 9387031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13078397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3451 + ... + 6169.

It is an arithmetic number, because the mean of its divisors is an integer number (813960).

Almost surely, 2^13078390 is an apocalyptic number.

13078390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13078390 is a deficient number, since it is larger than the sum of its proper divisors (12968330).

13078390 is a wasteful number, since it uses less digits than its factorization.

13078390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13078390 is about 3616.4056741466. The cubic root of 13078390 is about 235.6051402512.

The spelling of 13078390 in words is "thirteen million, seventy-eight thousand, three hundred ninety".