240840315 has 12 divisors (see below), whose sum is σ = 417456624. Its totient is φ = 128448144.

The previous prime is 240840311. The next prime is 240840317. The reversal of 240840315 is 513048042.

240840315 is a `hidden beast` number, since 240 + 8 + 403 + 15 = 666.

It is not a de Polignac number, because 240840315 - 2² = 240840311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240840311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2675959 + ... + 2676048.

It is an arithmetic number, because the mean of its divisors is an integer number (34788052).

Almost surely, 2^240840315 is an apocalyptic number.

240840315 is a deficient number, since it is larger than the sum of its proper divisors (176616309).

240840315 is a wasteful number, since it uses less digits than its factorization.

240840315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352018 (or 5352015 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 240840315 is about 15519.0307364861. The cubic root of 240840315 is about 622.1709491422.

Adding to 240840315 its reverse (513048042), we get a palindrome (753888357).

The spelling of 240840315 in words is "two hundred forty million, eight hundred forty thousand, three hundred fifteen".