2640473800 has 48 divisors (see below), whose sum is σ = 6288855300. Its totient is φ = 1030425600.

The previous prime is 2640473791. The next prime is 2640473821. The reversal of 2640473800 is 83740462.

2640473800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 71808676 + 2568665124 = 8474^2 + 50682^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152805 + ... + 169204.

Almost surely, 2^2640473800 is an apocalyptic number.

2640473800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2640473800 is an abundant number, since it is smaller than the sum of its proper divisors (3648381500).

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

2640473800 is a wasteful number, since it uses less digits than its factorization.

2640473800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322066 (or 322057 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 2640473800 is about 51385.5407678074. The cubic root of 2640473800 is about 1382.1673218274.

The spelling of 2640473800 in words is "two billion, six hundred forty million, four hundred seventy-three thousand, eight hundred".