231475938 has 8 divisors (see below), whose sum is σ = 462951888. Its totient is φ = 77158644.

The previous prime is 231475847. The next prime is 231475957. The reversal of 231475938 is 839574132.

231475938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

231475938 is an admirable number.

It is a super-2 number, since 2×231475938² = 107162219745959688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231475938.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19289656 + ... + 19289667.

It is an arithmetic number, because the mean of its divisors is an integer number (57868986).

Almost surely, 2^231475938 is an apocalyptic number.

231475938 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.

231475938 is a wasteful number, since it uses less digits than its factorization.

231475938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38579328.

The product of its digits is 181440, while the sum is 42.

The square root of 231475938 is about 15214.3333077726. Note that the first 4 decimals coincide. The cubic root of 231475938 is about 614.0003483678. Note that the first 3 decimals are identical.

The spelling of 231475938 in words is "two hundred thirty-one million, four hundred seventy-five thousand, nine hundred thirty-eight".