220543422 has 32 divisors (see below), whose sum is σ = 484717824. Its totient is φ = 66340800.

The previous prime is 220543417. The next prime is 220543423. The reversal of 220543422 is 224345022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220543392 and 220543401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220543423) 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, 3154 + ... + 21237.

It is an arithmetic number, because the mean of its divisors is an integer number (15147432).

Almost surely, 2^220543422 is an apocalyptic number.

220543422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220543422 is an abundant number, since it is smaller than the sum of its proper divisors (264174402).

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

220543422 is a wasteful number, since it uses less digits than its factorization.

220543422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24544.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 220543422 is about 14850.7044277368. The cubic root of 220543422 is about 604.1777158587.

Adding to 220543422 its reverse (224345022), we get a palindrome (444888444).

The spelling of 220543422 in words is "two hundred twenty million, five hundred forty-three thousand, four hundred twenty-two".