1980375384 has 64 divisors (see below), whose sum is σ = 5342803200. Its totient is φ = 608086656.

The previous prime is 1980375359. The next prime is 1980375391. The reversal of 1980375384 is 4835730891.

It is a super-3 number, since 3×1980375384³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

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, 150627 + ... + 163245.

It is an arithmetic number, because the mean of its divisors is an integer number (83481300).

Almost surely, 2^1980375384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980375384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2671401600).

1980375384 is an abundant number, since it is smaller than the sum of its proper divisors (3362427816).

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

1980375384 is a wasteful number, since it uses less digits than its factorization.

1980375384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13144 (or 13140 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 1980375384 is about 44501.4087866890. The cubic root of 1980375384 is about 1255.7865862532.

The spelling of 1980375384 in words is "one billion, nine hundred eighty million, three hundred seventy-five thousand, three hundred eighty-four".