2399509672 has 16 divisors (see below), whose sum is σ = 5141806560. Its totient is φ = 1028361264.

The previous prime is 2399509667. The next prime is 2399509703. The reversal of 2399509672 is 2769059932.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21424138 + ... + 21424249.

It is an arithmetic number, because the mean of its divisors is an integer number (321362910).

Almost surely, 2^2399509672 is an apocalyptic number.

It is an amenable number.

2399509672 is an abundant number, since it is smaller than the sum of its proper divisors (2742296888).

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

2399509672 is a wasteful number, since it uses less digits than its factorization.

2399509672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42848400 (or 42848396 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 52.

The square root of 2399509672 is about 48984.7902108399. The cubic root of 2399509672 is about 1338.7747156989.

The spelling of 2399509672 in words is "two billion, three hundred ninety-nine million, five hundred nine thousand, six hundred seventy-two".