2399489136 has 80 divisors (see below), whose sum is σ = 7513566720. Its totient is φ = 727116480.

The previous prime is 2399489129. The next prime is 2399489137. The reversal of 2399489136 is 6319849932.

2399489136 is a `hidden beast` number, since 23 + 9 + 9 + 489 + 136 = 666.

It is a super-2 number, since 2×2399489136² = 11515096227564052992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399489137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247720 + ... + 257223.

It is an arithmetic number, because the mean of its divisors is an integer number (93919584).

Almost surely, 2^2399489136 is an apocalyptic number.

It is an amenable number.

2399489136 is an abundant number, since it is smaller than the sum of its proper divisors (5114077584).

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

2399489136 is a wasteful number, since it uses less digits than its factorization.

2399489136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504971 (or 504959 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 2399489136 is about 48984.5805943054. The cubic root of 2399489136 is about 1338.7708964247.

The spelling of 2399489136 in words is "two billion, three hundred ninety-nine million, four hundred eighty-nine thousand, one hundred thirty-six".