240868660 has 24 divisors (see below), whose sum is σ = 507015936. Its totient is φ = 96120480.

The previous prime is 240868651. The next prime is 240868669. The reversal of 240868660 is 66868042.

It is an interprime number because it is at equal distance from previous prime (240868651) and next prime (240868669).

It is a super-2 number, since 2×240868660² = 116035422740391200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240868669) 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, 5352 + ... + 22591.

It is an arithmetic number, because the mean of its divisors is an integer number (21125664).

Almost surely, 2^240868660 is an apocalyptic number.

240868660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240868660 is an abundant number, since it is smaller than the sum of its proper divisors (266147276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240868660 is a wasteful number, since it uses less digits than its factorization.

240868660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28383 (or 28381 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 240868660 is about 15519.9439431977. The cubic root of 240868660 is about 622.1953563844.

The spelling of 240868660 in words is "two hundred forty million, eight hundred sixty-eight thousand, six hundred sixty".