2399723056 has 20 divisors (see below), whose sum is σ = 4651240000. Its totient is φ = 1199403072.

The previous prime is 2399723041. The next prime is 2399723057. The reversal of 2399723056 is 6503279932.

It is a junction number, because it is equal to n+sod(n) for n = 2399722997 and 2399723015.

It is not an unprimeable number, because it can be changed into a prime (2399723057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16705 + ... + 71263.

It is an arithmetic number, because the mean of its divisors is an integer number (232562000).

Almost surely, 2^2399723056 is an apocalyptic number.

It is an amenable number.

2399723056 is a deficient number, since it is larger than the sum of its proper divisors (2251516944).

2399723056 is a wasteful number, since it uses less digits than its factorization.

2399723056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57316 (or 57310 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 46.

The square root of 2399723056 is about 48986.9682262538. The cubic root of 2399723056 is about 1338.8143994503.

The spelling of 2399723056 in words is "two billion, three hundred ninety-nine million, seven hundred twenty-three thousand, fifty-six".