220043220 has 24 divisors (see below), whose sum is σ = 616121184. Its totient is φ = 58678176.

The previous prime is 220043207. The next prime is 220043221. The reversal of 220043220 is 22340022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220043220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220043221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1833634 + ... + 1833753.

It is an arithmetic number, because the mean of its divisors is an integer number (25671716).

Almost surely, 2^220043220 is an apocalyptic number.

220043220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220043220 is an abundant number, since it is smaller than the sum of its proper divisors (396077964).

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

220043220 is a wasteful number, since it uses less digits than its factorization.

220043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667399 (or 3667397 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 220043220 is about 14833.8538485452. The cubic root of 220043220 is about 603.7206030549.

Adding to 220043220 its reverse (22340022), we get a palindrome (242383242).

The spelling of 220043220 in words is "two hundred twenty million, forty-three thousand, two hundred twenty".