230331240 has 96 divisors (see below), whose sum is σ = 772761600. Its totient is φ = 59437440.

The previous prime is 230331239. The next prime is 230331247. The reversal of 230331240 is 42133032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (230331247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 841 + ... + 21479.

It is an arithmetic number, because the mean of its divisors is an integer number (8049600).

Almost surely, 2^230331240 is an apocalyptic number.

230331240 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 230331240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386380800).

230331240 is an abundant number, since it is smaller than the sum of its proper divisors (542430360).

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

230331240 is a wasteful number, since it uses less digits than its factorization.

230331240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20687 (or 20680 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 230331240 is about 15176.6676184201. The cubic root of 230331240 is about 612.9865543881.

Adding to 230331240 its reverse (42133032), we get a palindrome (272464272).

The spelling of 230331240 in words is "two hundred thirty million, three hundred thirty-one thousand, two hundred forty".