240668415 has 64 divisors (see below), whose sum is σ = 466730880. Its totient is φ = 118412928.

The previous prime is 240668413. The next prime is 240668423. The reversal of 240668415 is 514866042.

It is not a de Polignac number, because 240668415 - 2¹ = 240668413 is a prime.

It is a super-2 number, since 2×240668415² = 115842571957224450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240668415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240668413) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 141309 + ... + 143001.

It is an arithmetic number, because the mean of its divisors is an integer number (7292670).

Almost surely, 2^240668415 is an apocalyptic number.

240668415 is a deficient number, since it is larger than the sum of its proper divisors (226062465).

240668415 is an equidigital number, since it uses as much as digits as its factorization.

240668415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732 (or 1714 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 240668415 is about 15513.4913865319. The cubic root of 240668415 is about 622.0228888783.

The spelling of 240668415 in words is "two hundred forty million, six hundred sixty-eight thousand, four hundred fifteen".