2399509068 has 96 divisors (see below), whose sum is σ = 6438216960. Its totient is φ = 688746240.

The previous prime is 2399509061. The next prime is 2399509117. The reversal of 2399509068 is 8609059932.

It is a self number, because there is not a number n which added to its sum of digits gives 2399509068.

It is not an unprimeable number, because it can be changed into a prime (2399509061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196971 + ... + 208797.

It is an arithmetic number, because the mean of its divisors is an integer number (67064760).

Almost surely, 2^2399509068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2399509068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3219108480).

2399509068 is an abundant number, since it is smaller than the sum of its proper divisors (4038707892).

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

2399509068 is a wasteful number, since it uses less digits than its factorization.

2399509068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11927 (or 11925 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The square root of 2399509068 is about 48984.7840456605. The cubic root of 2399509068 is about 1338.7746033676.

The spelling of 2399509068 in words is "two billion, three hundred ninety-nine million, five hundred nine thousand, sixty-eight".