2162979904 has 28 divisors (see below), whose sum is σ = 4544645724. Its totient is φ = 1017872384.

The previous prime is 2162979901. The next prime is 2162979911. The reversal of 2162979904 is 4099792612.

It can be written as a sum of positive squares in 2 ways, for example, as 1105429504 + 1057550400 = 33248^2 + 32520^2 .

It is not an unprimeable number, because it can be changed into a prime (2162979901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992929 + ... + 995104.

Almost surely, 2^2162979904 is an apocalyptic number.

It is an amenable number.

2162979904 is an abundant number, since it is smaller than the sum of its proper divisors (2381665820).

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

2162979904 is a wasteful number, since it uses less digits than its factorization.

2162979904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988062 (or 1988052 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 2162979904 is about 46507.8477678768. The cubic root of 2162979904 is about 1293.2549861020.

The spelling of 2162979904 in words is "two billion, one hundred sixty-two million, nine hundred seventy-nine thousand, nine hundred four".