240342321 has 16 divisors (see below), whose sum is σ = 324368000. Its totient is φ = 158284800.

The previous prime is 240342317. The next prime is 240342329. The reversal of 240342321 is 123243042.

240342321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 240342321 - 2² = 240342317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240342329) 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, 86055 + ... + 88803.

It is an arithmetic number, because the mean of its divisors is an integer number (20273000).

Almost surely, 2^240342321 is an apocalyptic number.

It is an amenable number.

240342321 is a deficient number, since it is larger than the sum of its proper divisors (84025679).

240342321 is a wasteful number, since it uses less digits than its factorization.

240342321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 240342321 is about 15502.9778107304. The cubic root of 240342321 is about 621.7418249744.

Adding to 240342321 its reverse (123243042), we get a palindrome (363585363).

The spelling of 240342321 in words is "two hundred forty million, three hundred forty-two thousand, three hundred twenty-one".