1983134880 has 384 divisors, whose sum is σ = 7515244800. Its totient is φ = 486715392.

The previous prime is 1983134849. The next prime is 1983134893. The reversal of 1983134880 is 884313891.

It is a super-2 number, since 2×1983134880² = 7865647904545228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3036634 + ... + 3037286.

It is an arithmetic number, because the mean of its divisors is an integer number (19570950).

Almost surely, 2^1983134880 is an apocalyptic number.

1983134880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1983134880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3757622400).

1983134880 is an abundant number, since it is smaller than the sum of its proper divisors (5532109920).

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

1983134880 is a wasteful number, since it uses less digits than its factorization.

1983134880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1983134880 is about 44532.4025850840. The cubic root of 1983134880 is about 1256.3695952081.

The spelling of 1983134880 in words is "one billion, nine hundred eighty-three million, one hundred thirty-four thousand, eight hundred eighty".