240868641 has 8 divisors (see below), whose sum is σ = 345862720. Its totient is φ = 148226832.

The previous prime is 240868633. The next prime is 240868651. The reversal of 240868641 is 146868042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240868641 - 2³ = 240868633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 6176119 = 240868641 / (2 + 4 + 0 + 8 + 6 + 8 + 6 + 4 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240868641.

It is not an unprimeable number, because it can be changed into a prime (240868601) 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, 3088021 + ... + 3088098.

It is an arithmetic number, because the mean of its divisors is an integer number (43232840).

Almost surely, 2^240868641 is an apocalyptic number.

It is an amenable number.

240868641 is a deficient number, since it is larger than the sum of its proper divisors (104994079).

240868641 is a wasteful number, since it uses less digits than its factorization.

240868641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176135.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 240868641 is about 15519.9433310821. The cubic root of 240868641 is about 622.1953400246.

The spelling of 240868641 in words is "two hundred forty million, eight hundred sixty-eight thousand, six hundred forty-one".