1980804396 has 24 divisors (see below), whose sum is σ = 4770970624. Its totient is φ = 638969040.

The previous prime is 1980804373. The next prime is 1980804431. The reversal of 1980804396 is 6934080891.

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, 2662000 + ... + 2662743.

Almost surely, 2^1980804396 is an apocalyptic number.

It is an amenable number.

1980804396 is an abundant number, since it is smaller than the sum of its proper divisors (2790166228).

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

1980804396 is a wasteful number, since it uses less digits than its factorization.

1980804396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5324781 (or 5324779 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 1980804396 is about 44506.2287326167. The cubic root of 1980804396 is about 1255.8772607487.

The spelling of 1980804396 in words is "one billion, nine hundred eighty million, eight hundred four thousand, three hundred ninety-six".