12791290 has 16 divisors (see below), whose sum is σ = 23079168. Its totient is φ = 5104336.

The previous prime is 12791281. The next prime is 12791297. The reversal of 12791290 is 9219721.

It is not an unprimeable number, because it can be changed into a prime (12791297) 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, 3759 + ... + 6301.

It is an arithmetic number, because the mean of its divisors is an integer number (1442448).

Almost surely, 2^12791290 is an apocalyptic number.

12791290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12791290 is a deficient number, since it is larger than the sum of its proper divisors (10287878).

12791290 is a wasteful number, since it uses less digits than its factorization.

12791290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 12791290 is about 3576.4912973472. The cubic root of 12791290 is about 233.8683482790.

The spelling of 12791290 in words is "twelve million, seven hundred ninety-one thousand, two hundred ninety".