240340321 has 8 divisors (see below), whose sum is σ = 259096320. Its totient is φ = 221622672.

The previous prime is 240340283. The next prime is 240340327. The reversal of 240340321 is 123043042.

240340321 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 not a de Polignac number, because 240340321 - 2⁷ = 240340193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240340327) 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, 4176 + ... + 22318.

It is an arithmetic number, because the mean of its divisors is an integer number (32387040).

Almost surely, 2^240340321 is an apocalyptic number.

It is an amenable number.

240340321 is a deficient number, since it is larger than the sum of its proper divisors (18755999).

240340321 is a wasteful number, since it uses less digits than its factorization.

240340321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19175.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 240340321 is about 15502.9133068595. The cubic root of 240340321 is about 621.7401003689.

Adding to 240340321 its reverse (123043042), we get a palindrome (363383363).

It can be divided in two parts, 2403 and 40321, that added together give a palindrome (42724).

The spelling of 240340321 in words is "two hundred forty million, three hundred forty thousand, three hundred twenty-one".