2289762978 has 64 divisors (see below), whose sum is σ = 4782551040. Its totient is φ = 730382400.

The previous prime is 2289762913. The next prime is 2289762991. The reversal of 2289762978 is 8792679822.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2310063 + ... + 2311053.

It is an arithmetic number, because the mean of its divisors is an integer number (74727360).

Almost surely, 2^2289762978 is an apocalyptic number.

2289762978 is an abundant number, since it is smaller than the sum of its proper divisors (2492788062).

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

2289762978 is a wasteful number, since it uses less digits than its factorization.

2289762978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223.

The product of its digits is 12192768, while the sum is 60.

The square root of 2289762978 is about 47851.4678771718. The cubic root of 2289762978 is about 1318.0448131623.

The spelling of 2289762978 in words is "two billion, two hundred eighty-nine million, seven hundred sixty-two thousand, nine hundred seventy-eight".