118331238 has 8 divisors (see below), whose sum is σ = 236662488. Its totient is φ = 39443744.

The previous prime is 118331209. The next prime is 118331261. The reversal of 118331238 is 832133811.

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

118331238 is an admirable number.

It is a super-2 number, since 2×118331238² = 28004563773225288, which contains 22 as substring.

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, 9860931 + ... + 9860942.

It is an arithmetic number, because the mean of its divisors is an integer number (29582811).

Almost surely, 2^118331238 is an apocalyptic number.

118331238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

118331238 is a wasteful number, since it uses less digits than its factorization.

118331238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19721878.

The product of its digits is 3456, while the sum is 30.

The square root of 118331238 is about 10878.0162713612. The cubic root of 118331238 is about 490.9453331704.

The spelling of 118331238 in words is "one hundred eighteen million, three hundred thirty-one thousand, two hundred thirty-eight".