220008424 has 32 divisors (see below), whose sum is σ = 437563080. Its totient is φ = 103348224.

The previous prime is 220008403. The next prime is 220008427. The reversal of 220008424 is 424800022.

It can be written as a sum of positive squares in 4 ways, for example, as 174715524 + 45292900 = 13218^2 + 6730^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220008395 and 220008404.

It is not an unprimeable number, because it can be changed into a prime (220008427) 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, 101884 + ... + 104020.

Almost surely, 2^220008424 is an apocalyptic number.

It is an amenable number.

220008424 is a deficient number, since it is larger than the sum of its proper divisors (217554656).

220008424 is a wasteful number, since it uses less digits than its factorization.

220008424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917 (or 2913 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 220008424 is about 14832.6809444551. The cubic root of 220008424 is about 603.6887787471.

Adding to 220008424 its reverse (424800022), we get a palindrome (644808446).

The spelling of 220008424 in words is "two hundred twenty million, eight thousand, four hundred twenty-four".