220242424 has 16 divisors (see below), whose sum is σ = 416610720. Its totient is φ = 109146240.

The previous prime is 220242403. The next prime is 220242479. The reversal of 220242424 is 424242022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220242395 and 220242404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120912 + ... + 122719.

It is an arithmetic number, because the mean of its divisors is an integer number (26038170).

Almost surely, 2^220242424 is an apocalyptic number.

It is an amenable number.

220242424 is a deficient number, since it is larger than the sum of its proper divisors (196368296).

220242424 is a wasteful number, since it uses less digits than its factorization.

220242424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243750 (or 243746 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 220242424 is about 14840.5668355356. The cubic root of 220242424 is about 603.9027298297.

Adding to 220242424 its reverse (424242022), we get a palindrome (644484446).

The spelling of 220242424 in words is "two hundred twenty million, two hundred forty-two thousand, four hundred twenty-four".