230731500 has 96 divisors (see below), whose sum is σ = 676218816. Its totient is φ = 61132800.

The previous prime is 230731493. The next prime is 230731547. The reversal of 230731500 is 5137032.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289102 + ... + 289898.

It is an arithmetic number, because the mean of its divisors is an integer number (7043946).

Almost surely, 2^230731500 is an apocalyptic number.

230731500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230731500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338109408).

230731500 is an abundant number, since it is smaller than the sum of its proper divisors (445487316).

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

230731500 is a wasteful number, since it uses less digits than its factorization.

230731500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 230731500 is about 15189.8485838405. The cubic root of 230731500 is about 613.3414230449.

Adding to 230731500 its reverse (5137032), we get a palindrome (235868532).

The spelling of 230731500 in words is "two hundred thirty million, seven hundred thirty-one thousand, five hundred".