99992238 has 16 divisors (see below), whose sum is σ = 203758416. Its totient is φ = 32701760.

The previous prime is 99992219. The next prime is 99992239. The reversal of 99992238 is 83229999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99992239) 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, 156903 + ... + 157538.

It is an arithmetic number, because the mean of its divisors is an integer number (12734901).

Almost surely, 2^99992238 is an apocalyptic number.

99992238 is an abundant number, since it is smaller than the sum of its proper divisors (103766178).

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

99992238 is a wasteful number, since it uses less digits than its factorization.

99992238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314499.

The product of its digits is 629856, while the sum is 51.

The square root of 99992238 is about 9999.6118924686. The cubic root of 99992238 is about 464.1468737130.

The spelling of 99992238 in words is "ninety-nine million, nine hundred ninety-two thousand, two hundred thirty-eight".