2990820056 has 40 divisors (see below), whose sum is σ = 6542071620. Its totient is φ = 1281771792.

The previous prime is 2990820037. The next prime is 2990820067. The reversal of 2990820056 is 6500280992.

It is a junction number, because it is equal to n+sod(n) for n = 2990819995 and 2990820022.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 58646 + ... + 97061.

Almost surely, 2^2990820056 is an apocalyptic number.

It is an amenable number.

2990820056 is an abundant number, since it is smaller than the sum of its proper divisors (3551251564).

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

2990820056 is an equidigital number, since it uses as much as digits as its factorization.

2990820056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155741 (or 155716 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 2990820056 is about 54688.3905047497. The cubic root of 2990820056 is about 1440.7769816655.

The spelling of 2990820056 in words is "two billion, nine hundred ninety million, eight hundred twenty thousand, fifty-six".