240020 has 24 divisors (see below), whose sum is σ = 550368. Its totient is φ = 87200.

The previous prime is 240017. The next prime is 240041. The reversal of 240020 is 20042.

240020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326 + ... + 765.

It is an arithmetic number, because the mean of its divisors is an integer number (22932).

2²⁴⁰⁰²⁰ is an apocalyptic number.

240020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240020 is an abundant number, since it is smaller than the sum of its proper divisors (310348).

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

240020 is a wasteful number, since it uses less digits than its factorization.

240020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 240020 is about 489.9183605459. The cubic root of 240020 is about 62.1463763114.

Adding to 240020 its reverse (20042), we get a palindrome (260062).

The spelling of 240020 in words is "two hundred forty thousand, twenty", and thus it is an iban number.