240442230 has 128 divisors (see below), whose sum is σ = 699383808. Its totient is φ = 51714432.

The previous prime is 240442229. The next prime is 240442289. The reversal of 240442230 is 32244042.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 240442197 and 240442206.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 323239 + ... + 323981.

It is an arithmetic number, because the mean of its divisors is an integer number (5463936).

Almost surely, 2^240442230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240442230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349691904).

240442230 is an abundant number, since it is smaller than the sum of its proper divisors (458941578).

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

240442230 is a wasteful number, since it uses less digits than its factorization.

240442230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 240442230 is about 15506.1997278508. The cubic root of 240442230 is about 621.8279646084.

Adding to 240442230 its reverse (32244042), we get a palindrome (272686272).

The spelling of 240442230 in words is "two hundred forty million, four hundred forty-two thousand, two hundred thirty".