1980485216 has 24 divisors (see below), whose sum is σ = 4104296280. Its totient is φ = 938124288.

The previous prime is 1980485191. The next prime is 1980485237. The reversal of 1980485216 is 6125840891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628081 + ... + 1629296.

It is an arithmetic number, because the mean of its divisors is an integer number (171012345).

Almost surely, 2^1980485216 is an apocalyptic number.

1980485216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1980485216 is an abundant number, since it is smaller than the sum of its proper divisors (2123811064).

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

1980485216 is a wasteful number, since it uses less digits than its factorization.

1980485216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257406 (or 3257398 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 1980485216 is about 44502.6427979283. The cubic root of 1980485216 is about 1255.8098012126.

The spelling of 1980485216 in words is "one billion, nine hundred eighty million, four hundred eighty-five thousand, two hundred sixteen".