12791044 has 24 divisors (see below), whose sum is σ = 25841088. Its totient is φ = 5426400.

The previous prime is 12791039. The next prime is 12791087. The reversal of 12791044 is 44019721.

It is a super-2 number, since 2×12791044² = 327221613219872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 567 + ... + 5089.

It is an arithmetic number, because the mean of its divisors is an integer number (1076712).

Almost surely, 2^12791044 is an apocalyptic number.

12791044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12791044 is an abundant number, since it is smaller than the sum of its proper divisors (13050044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12791044 is a wasteful number, since it uses less digits than its factorization.

12791044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4635 (or 4633 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12791044 is about 3576.4569059336. The cubic root of 12791044 is about 233.8668490301.

The spelling of 12791044 in words is "twelve million, seven hundred ninety-one thousand, forty-four".