231328774 has 8 divisors (see below), whose sum is σ = 348178320. Its totient is φ = 115269336.

The previous prime is 231328771. The next prime is 231328807. The reversal of 231328774 is 477823132.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231328771) by changing a digit.

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, 196794 + ... + 197965.

It is an arithmetic number, because the mean of its divisors is an integer number (43522290).

Almost surely, 2^231328774 is an apocalyptic number.

231328774 is a deficient number, since it is larger than the sum of its proper divisors (116849546).

231328774 is a wasteful number, since it uses less digits than its factorization.

231328774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395054.

The product of its digits is 56448, while the sum is 37.

The square root of 231328774 is about 15209.4961783749. The cubic root of 231328774 is about 613.8702010708.

The spelling of 231328774 in words is "two hundred thirty-one million, three hundred twenty-eight thousand, seven hundred seventy-four".