2438398899 has 24 divisors (see below), whose sum is σ = 3638449152. Its totient is φ = 1571992560.

The previous prime is 2438398891. The next prime is 2438398951. The reversal of 2438398899 is 9988938342.

2438398899 is a `hidden beast` number, since 2 + 438 + 39 + 88 + 99 = 666.

It is not a de Polignac number, because 2438398899 - 2³ = 2438398891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2438398891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 529762 + ... + 534344.

It is an arithmetic number, because the mean of its divisors is an integer number (151602048).

Almost surely, 2^2438398899 is an apocalyptic number.

2438398899 is a deficient number, since it is larger than the sum of its proper divisors (1200050253).

2438398899 is a wasteful number, since it uses less digits than its factorization.

2438398899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6527 (or 6524 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 63.

The square root of 2438398899 is about 49380.1468102313. The cubic root of 2438398899 is about 1345.9685673712.

The spelling of 2438398899 in words is "two billion, four hundred thirty-eight million, three hundred ninety-eight thousand, eight hundred ninety-nine".