2039821056 has 720 divisors, whose sum is σ = 7977682944. Its totient is φ = 503635968.

The previous prime is 2039821039. The next prime is 2039821061. The reversal of 2039821056 is 6501289302.

2039821056 is a `hidden beast` number, since 2 + 0 + 398 + 210 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2039821056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 43400425 + ... + 43400471.

Almost surely, 2^2039821056 is an apocalyptic number.

2039821056 is a gapful number since it is divisible by the number (26) 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 2039821056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3988841472).

2039821056 is an abundant number, since it is smaller than the sum of its proper divisors (5937861888).

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

2039821056 is a wasteful number, since it uses less digits than its factorization.

2039821056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2039821056 is about 45164.3781757261. The cubic root of 2039821056 is about 1268.2280569147.

The spelling of 2039821056 in words is "two billion, thirty-nine million, eight hundred twenty-one thousand, fifty-six".