220204020 has 48 divisors (see below), whose sum is σ = 633241728. Its totient is φ = 57133440.

The previous prime is 220204013. The next prime is 220204021. The reversal of 220204020 is 20402022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 220203987 and 220204005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220204021) 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, 47376 + ... + 51815.

It is an arithmetic number, because the mean of its divisors is an integer number (13192536).

Almost surely, 2^220204020 is an apocalyptic number.

220204020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220204020 is an abundant number, since it is smaller than the sum of its proper divisors (413037708).

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

220204020 is a wasteful number, since it uses less digits than its factorization.

220204020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99240 (or 99238 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 220204020 is about 14839.2728932384. The cubic root of 220204020 is about 603.8676266494.

Adding to 220204020 its reverse (20402022), we get a palindrome (240606042).

The spelling of 220204020 in words is "two hundred twenty million, two hundred four thousand, twenty".