240304305 has 16 divisors (see below), whose sum is σ = 404723520. Its totient is φ = 121416768.

The previous prime is 240304301. The next prime is 240304319. The reversal of 240304305 is 503403042.

It is a happy number.

It is not a de Polignac number, because 240304305 - 2² = 240304301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240304301) 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, 421302 + ... + 421871.

It is an arithmetic number, because the mean of its divisors is an integer number (25295220).

Almost surely, 2^240304305 is an apocalyptic number.

It is an amenable number.

240304305 is a deficient number, since it is larger than the sum of its proper divisors (164419215).

240304305 is a wasteful number, since it uses less digits than its factorization.

240304305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843200.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 240304305 is about 15501.7516752140. The cubic root of 240304305 is about 621.7090420346.

Adding to 240304305 its reverse (503403042), we get a palindrome (743707347).

The spelling of 240304305 in words is "two hundred forty million, three hundred four thousand, three hundred five".