980804980 has 24 divisors (see below), whose sum is σ = 2060577288. Its totient is φ = 392153088.

The previous prime is 980804971. The next prime is 980804983. The reversal of 980804980 is 89408089.

It can be written as a sum of positive squares in 4 ways, for example, as 244985104 + 735819876 = 15652^2 + 27126^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 980804980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980804983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43912 + ... + 62368.

It is an arithmetic number, because the mean of its divisors is an integer number (85857387).

Almost surely, 2^980804980 is an apocalyptic number.

It is an amenable number.

980804980 is an abundant number, since it is smaller than the sum of its proper divisors (1079772308).

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

980804980 is a wasteful number, since it uses less digits than its factorization.

980804980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21123 (or 21121 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 980804980 is about 31317.8061172873. The cubic root of 980804980 is about 993.5602790120.

The spelling of 980804980 in words is "nine hundred eighty million, eight hundred four thousand, nine hundred eighty".