2597444156 has 12 divisors (see below), whose sum is σ = 4546090920. Its totient is φ = 1298561040.

The previous prime is 2597444149. The next prime is 2597444203. The reversal of 2597444156 is 6514447952.

It is a super-2 number, since 2×2597444156² = 13493432287077104672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2597444156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650 + ... + 72078.

It is an arithmetic number, because the mean of its divisors is an integer number (378840910).

Almost surely, 2^2597444156 is an apocalyptic number.

It is an amenable number.

2597444156 is a deficient number, since it is larger than the sum of its proper divisors (1948646764).

2597444156 is a wasteful number, since it uses less digits than its factorization.

2597444156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80524 (or 80522 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 47.

The square root of 2597444156 is about 50965.1268614138. The cubic root of 2597444156 is about 1374.6181473646.

The spelling of 2597444156 in words is "two billion, five hundred ninety-seven million, four hundred forty-four thousand, one hundred fifty-six".