1982385888 has 96 divisors (see below), whose sum is σ = 6031065600. Its totient is φ = 558405120.

The previous prime is 1982385877. The next prime is 1982385901. The reversal of 1982385888 is 8885832891.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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, 26938 + ... + 68486.

It is an arithmetic number, because the mean of its divisors is an integer number (62823600).

Almost surely, 2^1982385888 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 1982385888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3015532800).

1982385888 is an abundant number, since it is smaller than the sum of its proper divisors (4048679712).

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

1982385888 is a wasteful number, since it uses less digits than its factorization.

1982385888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41640 (or 41632 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 60.

The square root of 1982385888 is about 44523.9922738292. The cubic root of 1982385888 is about 1256.2114063934.

The spelling of 1982385888 in words is "one billion, nine hundred eighty-two million, three hundred eighty-five thousand, eight hundred eighty-eight".