230243440 has 80 divisors (see below), whose sum is σ = 614192832. Its totient is φ = 78630912.

The previous prime is 230243437. The next prime is 230243443. The reversal of 230243440 is 44342032.

It is an interprime number because it is at equal distance from previous prime (230243437) and next prime (230243443).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230243443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176872 + ... + 178168.

Almost surely, 2^230243440 is an apocalyptic number.

230243440 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 230243440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307096416).

230243440 is an abundant number, since it is smaller than the sum of its proper divisors (383949392).

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

230243440 is a wasteful number, since it uses less digits than its factorization.

230243440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 230243440 is about 15173.7747446046. The cubic root of 230243440 is about 612.9086563436.

Adding to 230243440 its reverse (44342032), we get a palindrome (274585472).

The spelling of 230243440 in words is "two hundred thirty million, two hundred forty-three thousand, four hundred forty".