2820323972 has 6 divisors (see below), whose sum is σ = 4935566958. Its totient is φ = 1410161984.

The previous prime is 2820323941. The next prime is 2820323993. The reversal of 2820323972 is 2793230282.

It can be written as a sum of positive squares in only one way, i.e., 2816849476 + 3474496 = 53074^2 + 1864^2 .

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 as a sum of consecutive naturals, namely, 352540493 + ... + 352540500.

It is an arithmetic number, because the mean of its divisors is an integer number (822594493).

Almost surely, 2^2820323972 is an apocalyptic number.

It is an amenable number.

2820323972 is a deficient number, since it is larger than the sum of its proper divisors (2115242986).

2820323972 is a wasteful number, since it uses less digits than its factorization.

2820323972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705080997 (or 705080995 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 2820323972 is about 53106.7224746548. The cubic root of 2820323972 is about 1412.8617451533.

The spelling of 2820323972 in words is "two billion, eight hundred twenty million, three hundred twenty-three thousand, nine hundred seventy-two".