2204440220 has 48 divisors (see below), whose sum is σ = 4804652160. Its totient is φ = 848580096.

The previous prime is 2204440181. The next prime is 2204440309. The reversal of 2204440220 is 220444022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2204440192 and 2204440201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175469 + ... + 187611.

It is an arithmetic number, because the mean of its divisors is an integer number (100096920).

Almost surely, 2^2204440220 is an apocalyptic number.

2204440220 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 2204440220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2402326080).

2204440220 is an abundant number, since it is smaller than the sum of its proper divisors (2600211940).

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

2204440220 is a wasteful number, since it uses less digits than its factorization.

2204440220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12494 (or 12492 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2204440220 is about 46951.4666437589. The cubic root of 2204440220 is about 1301.4658455440.

2204440220 divided by its sum of digits (20) gives a palindrome (110222011).

Adding to 2204440220 its reverse (220444022), we get a palindrome (2424884242).

The spelling of 2204440220 in words is "two billion, two hundred four million, four hundred forty thousand, two hundred twenty".