38999912 has 16 divisors (see below), whose sum is σ = 83571360. Its totient is φ = 16714224.

The previous prime is 38999911. The next prime is 38999959. The reversal of 38999912 is 21999983.

It is not an unprimeable number, because it can be changed into a prime (38999911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348158 + ... + 348269.

It is an arithmetic number, because the mean of its divisors is an integer number (5223210).

Almost surely, 2^38999912 is an apocalyptic number.

It is an amenable number.

38999912 is an abundant number, since it is smaller than the sum of its proper divisors (44571448).

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

38999912 is a wasteful number, since it uses less digits than its factorization.

38999912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696440 (or 696436 counting only the distinct ones).

The product of its digits is 314928, while the sum is 50.

The square root of 38999912 is about 6244.9909527557. The cubic root of 38999912 is about 339.1208892357.

The spelling of 38999912 in words is "thirty-eight million, nine hundred ninety-nine thousand, nine hundred twelve".