2182904856 has 240 divisors, whose sum is σ = 7081531800. Its totient is φ = 622575360.

The previous prime is 2182904837. The next prime is 2182904917. The reversal of 2182904856 is 6584092812.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

2182904856 is a `hidden beast` number, since 2 + 1 + 82 + 90 + 485 + 6 = 666.

It is a super-2 number, since 2×2182904856² = 9530147220696761472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 128406160 + ... + 128406176.

Almost surely, 2^2182904856 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 2182904856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3540765900).

2182904856 is an abundant number, since it is smaller than the sum of its proper divisors (4898626944).

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

2182904856 is an equidigital number, since it uses as much as digits as its factorization.

2182904856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 2182904856 is about 46721.5673538463. The cubic root of 2182904856 is about 1297.2139260383.

The spelling of 2182904856 in words is "two billion, one hundred eighty-two million, nine hundred four thousand, eight hundred fifty-six".