99402238 has 8 divisors (see below), whose sum is σ = 160572888. Its totient is φ = 45877944.

The previous prime is 99402217. The next prime is 99402257. The reversal of 99402238 is 83220499.

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

It is a junction number, because it is equal to n+sod(n) for n = 99402197 and 99402206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1911556 + ... + 1911607.

It is an arithmetic number, because the mean of its divisors is an integer number (20071611).

Almost surely, 2^99402238 is an apocalyptic number.

99402238 is a deficient number, since it is larger than the sum of its proper divisors (61170650).

99402238 is a wasteful number, since it uses less digits than its factorization.

99402238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3823178.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 99402238 is about 9970.0671010781. The cubic root of 99402238 is about 463.2321792647.

The spelling of 99402238 in words is "ninety-nine million, four hundred two thousand, two hundred thirty-eight".