2399129376 has 144 divisors (see below), whose sum is σ = 7464913344. Its totient is φ = 672462336.

The previous prime is 2399129347. The next prime is 2399129377. The reversal of 2399129376 is 6739219932.

It is a super-2 number, since 2×2399129376² = 11511643525572298752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2399129377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244501 + ... + 254123.

It is an arithmetic number, because the mean of its divisors is an integer number (51839676).

Almost surely, 2^2399129376 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 2399129376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3732456672).

2399129376 is an abundant number, since it is smaller than the sum of its proper divisors (5065783968).

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

2399129376 is a wasteful number, since it uses less digits than its factorization.

2399129376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9703 (or 9688 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 51.

The square root of 2399129376 is about 48980.9082806761. The cubic root of 2399129376 is about 1338.7039849193.

The spelling of 2399129376 in words is "two billion, three hundred ninety-nine million, one hundred twenty-nine thousand, three hundred seventy-six".