1982180376 has 192 divisors, whose sum is σ = 6104700000. Its totient is φ = 595457280.

The previous prime is 1982180357. The next prime is 1982180381. The reversal of 1982180376 is 6730812891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3894010 + ... + 3894518.

Almost surely, 2^1982180376 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 1982180376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3052350000).

1982180376 is an abundant number, since it is smaller than the sum of its proper divisors (4122519624).

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

1982180376 is a wasteful number, since it uses less digits than its factorization.

1982180376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1982180376 is about 44521.6843347149. The cubic root of 1982180376 is about 1256.1679948252.

The spelling of 1982180376 in words is "one billion, nine hundred eighty-two million, one hundred eighty thousand, three hundred seventy-six".