231673580 has 12 divisors (see below), whose sum is σ = 486514560. Its totient is φ = 92669424.

The previous prime is 231673579. The next prime is 231673597. The reversal of 231673580 is 85376132.

It is a self number, because there is not a number n which added to its sum of digits gives 231673580.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5791820 + ... + 5791859.

It is an arithmetic number, because the mean of its divisors is an integer number (40542880).

Almost surely, 2^231673580 is an apocalyptic number.

231673580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231673580 is an abundant number, since it is smaller than the sum of its proper divisors (254840980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231673580 is a wasteful number, since it uses less digits than its factorization.

231673580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11583688 (or 11583686 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 231673580 is about 15220.8271785734. The cubic root of 231673580 is about 614.1750500899.

The spelling of 231673580 in words is "two hundred thirty-one million, six hundred seventy-three thousand, five hundred eighty".