231993474 has 8 divisors (see below), whose sum is σ = 463986960. Its totient is φ = 77331156.

The previous prime is 231993451. The next prime is 231993481. The reversal of 231993474 is 474399132.

231993474 is digitally balanced in base 2, 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.

231993474 is an admirable 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, 19332784 + ... + 19332795.

It is an arithmetic number, because the mean of its divisors is an integer number (57998370).

Almost surely, 2^231993474 is an apocalyptic number.

231993474 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.

231993474 is a wasteful number, since it uses less digits than its factorization.

231993474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38665584.

The product of its digits is 163296, while the sum is 42.

The square root of 231993474 is about 15231.3319837761. The cubic root of 231993474 is about 614.4576036062.

The spelling of 231993474 in words is "two hundred thirty-one million, nine hundred ninety-three thousand, four hundred seventy-four".