231423992 has 16 divisors (see below), whose sum is σ = 459444960. Its totient is φ = 108905344.

The previous prime is 231423991. The next prime is 231424007. The reversal of 231423992 is 299324132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231423991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850688 + ... + 850959.

It is an arithmetic number, because the mean of its divisors is an integer number (28715310).

Almost surely, 2^231423992 is an apocalyptic number.

It is an amenable number.

231423992 is a deficient number, since it is larger than the sum of its proper divisors (228020968).

231423992 is a wasteful number, since it uses less digits than its factorization.

231423992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701670 (or 1701666 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 231423992 is about 15212.6260717866. The cubic root of 231423992 is about 613.9544152303.

The spelling of 231423992 in words is "two hundred thirty-one million, four hundred twenty-three thousand, nine hundred ninety-two".