1320980904 has 48 divisors (see below), whose sum is σ = 3645170100. Its totient is φ = 432017664.

The previous prime is 1320980879. The next prime is 1320980923. The reversal of 1320980904 is 4090890231.

It can be written as a sum of positive squares in 2 ways, for example, as 1082278404 + 238702500 = 32898^2 + 15450^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169269 + ... + 176900.

Almost surely, 2^1320980904 is an apocalyptic number.

It is an amenable number.

1320980904 is an abundant number, since it is smaller than the sum of its proper divisors (2324189196).

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

1320980904 is a wasteful number, since it uses less digits than its factorization.

1320980904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346234 (or 346227 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1320980904 is about 36345.3009892613. The cubic root of 1320980904 is about 1097.2329638490.

The spelling of 1320980904 in words is "one billion, three hundred twenty million, nine hundred eighty thousand, nine hundred four".