2289878944 has 12 divisors (see below), whose sum is σ = 4508199234. Its totient is φ = 1144939456.

The previous prime is 2289878933. The next prime is 2289878951. The reversal of 2289878944 is 4498789822.

It can be written as a sum of positive squares in only one way, i.e., 1917388944 + 372490000 = 43788^2 + 19300^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35779327 + ... + 35779390.

Almost surely, 2^2289878944 is an apocalyptic number.

It is an amenable number.

2289878944 is a deficient number, since it is larger than the sum of its proper divisors (2218320290).

2289878944 is an equidigital number, since it uses as much as digits as its factorization.

2289878944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71558727 (or 71558719 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 61.

The square root of 2289878944 is about 47852.6795905935. The cubic root of 2289878944 is about 1318.0670637629.

The spelling of 2289878944 in words is "two billion, two hundred eighty-nine million, eight hundred seventy-eight thousand, nine hundred forty-four".