240242321 has 8 divisors (see below), whose sum is σ = 262351488. Its totient is φ = 218178000.

The previous prime is 240242309. The next prime is 240242323. The reversal of 240242321 is 123242042.

240242321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240242321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 240242293 and 240242302.

It is not an unprimeable number, because it can be changed into a prime (240242323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536 + ... + 21926.

It is an arithmetic number, because the mean of its divisors is an integer number (32793936).

Almost surely, 2^240242321 is an apocalyptic number.

It is an amenable number.

240242321 is a deficient number, since it is larger than the sum of its proper divisors (22109167).

240242321 is a wasteful number, since it uses less digits than its factorization.

240242321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22423.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 240242321 is about 15499.7522883432. The cubic root of 240242321 is about 621.6555829742.

Adding to 240242321 its reverse (123242042), we get a palindrome (363484363).

The spelling of 240242321 in words is "two hundred forty million, two hundred forty-two thousand, three hundred twenty-one".