240258 has 16 divisors (see below), whose sum is σ = 501696. Its totient is φ = 76560.

The previous prime is 240257. The next prime is 240259. The reversal of 240258 is 852042.

It is an interprime number because it is at equal distance from previous prime (240257) and next prime (240259).

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 240258.

It is not an unprimeable number, because it can be changed into a prime (240257) 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, 733 + ... + 1008.

It is an arithmetic number, because the mean of its divisors is an integer number (31356).

2²⁴⁰²⁵⁸ is an apocalyptic number.

240258 is an abundant number, since it is smaller than the sum of its proper divisors (261438).

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

240258 is a wasteful number, since it uses less digits than its factorization.

240258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 240258 is about 490.1611979747. The cubic root of 240258 is about 62.1669106439.

The spelling of 240258 in words is "two hundred forty thousand, two hundred fifty-eight".