240320345 has 4 divisors (see below), whose sum is σ = 288384420. Its totient is φ = 192256272.

The previous prime is 240320323. The next prime is 240320351. The reversal of 240320345 is 543023042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78623689 + 161696656 = 8867^2 + 12716^2 .

It is a cyclic number.

It is not a de Polignac number, because 240320345 - 2⁶ = 240320281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240320345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24032030 + ... + 24032039.

It is an arithmetic number, because the mean of its divisors is an integer number (72096105).

Almost surely, 2^240320345 is an apocalyptic number.

It is an amenable number.

240320345 is a deficient number, since it is larger than the sum of its proper divisors (48064075).

240320345 is an equidigital number, since it uses as much as digits as its factorization.

240320345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48064074.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 240320345 is about 15502.2690274682. The cubic root of 240320345 is about 621.7228744836.

Adding to 240320345 its reverse (543023042), we get a palindrome (783343387).

The spelling of 240320345 in words is "two hundred forty million, three hundred twenty thousand, three hundred forty-five".