240220 has 12 divisors (see below), whose sum is σ = 504504. Its totient is φ = 96080.

The previous prime is 240209. The next prime is 240257. The reversal of 240220 is 22042.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 240197 and 240206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5986 + ... + 6025.

It is an arithmetic number, because the mean of its divisors is an integer number (42042).

2²⁴⁰²²⁰ is an apocalyptic number.

240220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240220 is an abundant number, since it is smaller than the sum of its proper divisors (264284).

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

240220 is a wasteful number, since it uses less digits than its factorization.

240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12020 (or 12018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 240220 is about 490.1224336837. The cubic root of 240220 is about 62.1636329630.

Adding to 240220 its reverse (22042), we get a palindrome (262262).

The spelling of 240220 in words is "two hundred forty thousand, two hundred twenty", and thus it is an iban number.