231433666 has 8 divisors (see below), whose sum is σ = 347468544. Its totient is φ = 115610820.

The previous prime is 231433663. The next prime is 231433667. The reversal of 231433666 is 666334132.

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

It is not an unprimeable number, because it can be changed into a prime (231433663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50250 + ... + 54661.

It is an arithmetic number, because the mean of its divisors is an integer number (43433568).

Almost surely, 2^231433666 is an apocalyptic number.

231433666 is a deficient number, since it is larger than the sum of its proper divisors (116034878).

231433666 is a wasteful number, since it uses less digits than its factorization.

231433666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106016.

The product of its digits is 46656, while the sum is 34.

The square root of 231433666 is about 15212.9440280309. The cubic root of 231433666 is about 613.9629699645.

Adding to 231433666 its reverse (666334132), we get a palindrome (897767798).

The spelling of 231433666 in words is "two hundred thirty-one million, four hundred thirty-three thousand, six hundred sixty-six".