38818899 has 16 divisors (see below), whose sum is σ = 65725440. Its totient is φ = 22182120.

The previous prime is 38818867. The next prime is 38818937. The reversal of 38818899 is 99881883.

It is not a de Polignac number, because 38818899 - 2⁵ = 38818867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38818859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102507 + ... + 102884.

It is an arithmetic number, because the mean of its divisors is an integer number (4107840).

Almost surely, 2^38818899 is an apocalyptic number.

38818899 is a deficient number, since it is larger than the sum of its proper divisors (26906541).

38818899 is a wasteful number, since it uses less digits than its factorization.

38818899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205407 (or 205401 counting only the distinct ones).

The product of its digits is 995328, while the sum is 54.

The square root of 38818899 is about 6230.4814420717. The cubic root of 38818899 is about 338.5954136418.

The spelling of 38818899 in words is "thirty-eight million, eight hundred eighteen thousand, eight hundred ninety-nine".