99012238 has 8 divisors (see below), whose sum is σ = 159942888. Its totient is φ = 45697944.

The previous prime is 99012227. The next prime is 99012247. The reversal of 99012238 is 83221099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1904056 + ... + 1904107.

It is an arithmetic number, because the mean of its divisors is an integer number (19992861).

Almost surely, 2^99012238 is an apocalyptic number.

99012238 is a deficient number, since it is larger than the sum of its proper divisors (60930650).

99012238 is a wasteful number, since it uses less digits than its factorization.

99012238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808178.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 99012238 is about 9950.4893347011. The cubic root of 99012238 is about 462.6255620129.

The spelling of 99012238 in words is "ninety-nine million, twelve thousand, two hundred thirty-eight".