240858 has 12 divisors (see below), whose sum is σ = 521898. Its totient is φ = 80280.

The previous prime is 240853. The next prime is 240859. The reversal of 240858 is 858042.

It can be written as a sum of positive squares in only one way, i.e., 233289 + 7569 = 483^2 + 87^2 .

It is not an unprimeable number, because it can be changed into a prime (240853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6673 + ... + 6708.

2²⁴⁰⁸⁵⁸ is an apocalyptic number.

240858 is an abundant number, since it is smaller than the sum of its proper divisors (281040).

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

240858 is a wasteful number, since it uses less digits than its factorization.

240858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13389 (or 13386 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 240858 is about 490.7728598853. The cubic root of 240858 is about 62.2186177523.

The spelling of 240858 in words is "two hundred forty thousand, eight hundred fifty-eight".