2845309988 has 6 divisors (see below), whose sum is σ = 4979292486. Its totient is φ = 1422654992.

The previous prime is 2845309981. The next prime is 2845309991. The reversal of 2845309988 is 8899035482.

It can be written as a sum of positive squares in only one way, i.e., 2750792704 + 94517284 = 52448^2 + 9722^2 .

It is not an unprimeable number, because it can be changed into a prime (2845309981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355663745 + ... + 355663752.

It is an arithmetic number, because the mean of its divisors is an integer number (829882081).

Almost surely, 2^2845309988 is an apocalyptic number.

It is an amenable number.

2845309988 is a deficient number, since it is larger than the sum of its proper divisors (2133982498).

2845309988 is a wasteful number, since it uses less digits than its factorization.

2845309988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711327501 (or 711327499 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 56.

The square root of 2845309988 is about 53341.4471869671. The cubic root of 2845309988 is about 1417.0217928682.

The spelling of 2845309988 in words is "two billion, eight hundred forty-five million, three hundred nine thousand, nine hundred eighty-eight".