2399808085 has 8 divisors (see below), whose sum is σ = 2880987480. Its totient is φ = 1919034624.

The previous prime is 2399808083. The next prime is 2399808097. The reversal of 2399808085 is 5808089932.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63632529 + 2336175556 = 7977^2 + 48334^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2399808085 - 2¹ = 2399808083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399808083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88320 + ... + 112249.

It is an arithmetic number, because the mean of its divisors is an integer number (360123435).

Almost surely, 2^2399808085 is an apocalyptic number.

It is an amenable number.

2399808085 is a deficient number, since it is larger than the sum of its proper divisors (481179395).

2399808085 is a wasteful number, since it uses less digits than its factorization.

2399808085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202967.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The square root of 2399808085 is about 48987.8360922382. The cubic root of 2399808085 is about 1338.8302119284.

The spelling of 2399808085 in words is "two billion, three hundred ninety-nine million, eight hundred eight thousand, eighty-five".