2182739856 has 160 divisors (see below), whose sum is σ = 6352355328. Its totient is φ = 640120320.

The previous prime is 2182739849. The next prime is 2182739879. The reversal of 2182739856 is 6589372812.

It is a junction number, because it is equal to n+sod(n) for n = 2182739799 and 2182739808.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2883030 + ... + 2883786.

Almost surely, 2^2182739856 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 2182739856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3176177664).

2182739856 is an abundant number, since it is smaller than the sum of its proper divisors (4169615472).

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

2182739856 is a wasteful number, since it uses less digits than its factorization.

2182739856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 943 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 2182739856 is about 46719.8015406744. The cubic root of 2182739856 is about 1297.1812408925.

The spelling of 2182739856 in words is "two billion, one hundred eighty-two million, seven hundred thirty-nine thousand, eight hundred fifty-six".