1980973380 has 48 divisors (see below), whose sum is σ = 5640747840. Its totient is φ = 519305088.

The previous prime is 1980973369. The next prime is 1980973403. The reversal of 1980973380 is 833790891.

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, 276259 + ... + 283338.

It is an arithmetic number, because the mean of its divisors is an integer number (117515580).

Almost surely, 2^1980973380 is an apocalyptic number.

1980973380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1980973380 is an abundant number, since it is smaller than the sum of its proper divisors (3659774460).

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

1980973380 is a wasteful number, since it uses less digits than its factorization.

1980973380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559668 (or 559666 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 1980973380 is about 44508.1271230323. The cubic root of 1980973380 is about 1255.9129730295.

The spelling of 1980973380 in words is "one billion, nine hundred eighty million, nine hundred seventy-three thousand, three hundred eighty".