9399009938 has 16 divisors (see below), whose sum is σ = 14723911296. Its totient is φ = 4491384480.

The previous prime is 9399009899. The next prime is 9399009959. The reversal of 9399009938 is 8399009939.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30758 + ... + 140513.

It is an arithmetic number, because the mean of its divisors is an integer number (920244456).

Almost surely, 2^9399009938 is an apocalyptic number.

9399009938 is a deficient number, since it is larger than the sum of its proper divisors (5324901358).

9399009938 is a wasteful number, since it uses less digits than its factorization.

9399009938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172489.

The product of its (nonzero) digits is 4251528, while the sum is 59.

The square root of 9399009938 is about 96948.4911589654. The cubic root of 9399009938 is about 2110.3801968319.

Subtracting from 9399009938 its reverse (8399009939), we obtain a palindrome (999999999).

The spelling of 9399009938 in words is "nine billion, three hundred ninety-nine million, nine thousand, nine hundred thirty-eight".