13078990 has 16 divisors (see below), whose sum is σ = 23636448. Its totient is φ = 5210656.

The previous prime is 13078907. The next prime is 13078999. The reversal of 13078990 is 9987031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13078999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144 + ... + 5116.

It is an arithmetic number, because the mean of its divisors is an integer number (1477278).

Almost surely, 2^13078990 is an apocalyptic number.

13078990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13078990 is a deficient number, since it is larger than the sum of its proper divisors (10557458).

13078990 is a wasteful number, since it uses less digits than its factorization.

13078990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 13078990 is about 3616.4886284903. The cubic root of 13078990 is about 235.6087431647.

The spelling of 13078990 in words is "thirteen million, seventy-eight thousand, nine hundred ninety".