240204220 has 48 divisors (see below), whose sum is σ = 538278048. Its totient is φ = 89722880.

The previous prime is 240204143. The next prime is 240204221. The reversal of 240204220 is 22402042.

It is a junction number, because it is equal to n+sod(n) for n = 240204194 and 240204203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240204221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41844 + ... + 47236.

It is an arithmetic number, because the mean of its divisors is an integer number (11214126).

Almost surely, 2^240204220 is an apocalyptic number.

240204220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240204220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269139024).

240204220 is an abundant number, since it is smaller than the sum of its proper divisors (298073828).

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

240204220 is a wasteful number, since it uses less digits than its factorization.

240204220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550 (or 5548 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 240204220 is about 15498.5231554494. The cubic root of 240204220 is about 621.6227176135.

Adding to 240204220 its reverse (22402042), we get a palindrome (262606262).

The spelling of 240204220 in words is "two hundred forty million, two hundred four thousand, two hundred twenty".