240668 has 6 divisors (see below), whose sum is σ = 421176. Its totient is φ = 120332.

The previous prime is 240659. The next prime is 240677. The reversal of 240668 is 866042.

240668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (240659) and next prime (240677).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

240668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30080 + ... + 30087.

It is an arithmetic number, because the mean of its divisors is an integer number (70196).

2²⁴⁰⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

240668 is a deficient number, since it is larger than the sum of its proper divisors (180508).

240668 is a wasteful number, since it uses less digits than its factorization.

240668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60171 (or 60169 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 240668 is about 490.5792494592. The cubic root of 240668 is about 62.2022531347.

The spelling of 240668 in words is "two hundred forty thousand, six hundred sixty-eight".