2820796660 has 24 divisors (see below), whose sum is σ = 6462189216. Its totient is φ = 1025744160.

The previous prime is 2820796631. The next prime is 2820796729. The reversal of 2820796660 is 666970282.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2820796660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6410682 + ... + 6411121.

It is an arithmetic number, because the mean of its divisors is an integer number (269257884).

Almost surely, 2^2820796660 is an apocalyptic number.

2820796660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2820796660 is an abundant number, since it is smaller than the sum of its proper divisors (3641392556).

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

2820796660 is a wasteful number, since it uses less digits than its factorization.

2820796660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12821823 (or 12821821 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 2820796660 is about 53111.1726475701. The cubic root of 2820796660 is about 1412.9406729044.

It can be divided in two parts, 2820 and 796660, that added together give a triangular number (799480 = T₁₂₆₄).

The spelling of 2820796660 in words is "two billion, eight hundred twenty million, seven hundred ninety-six thousand, six hundred sixty".