1791080988 has 48 divisors (see below), whose sum is σ = 4242420000. Its totient is φ = 588017664.

The previous prime is 1791080971. The next prime is 1791081007. The reversal of 1791080988 is 8890801971.

It is a super-2 number, since 2×1791080988² = 6415942211150112288, 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 1791080988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1093306 + ... + 1094942.

It is an arithmetic number, because the mean of its divisors is an integer number (88383750).

Almost surely, 2^1791080988 is an apocalyptic number.

It is an amenable number.

1791080988 is an abundant number, since it is smaller than the sum of its proper divisors (2451339012).

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

1791080988 is a wasteful number, since it uses less digits than its factorization.

1791080988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966 (or 2964 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 51.

The square root of 1791080988 is about 42321.1647760314. The cubic root of 1791080988 is about 1214.4279147253.

The spelling of 1791080988 in words is "one billion, seven hundred ninety-one million, eighty thousand, nine hundred eighty-eight".