220402424 has 32 divisors (see below), whose sum is σ = 452833200. Its totient is φ = 99736320.

The previous prime is 220402423. The next prime is 220402459. The reversal of 220402424 is 424204022.

220402424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220402396 and 220402405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220402421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14684 + ... + 25620.

Almost surely, 2^220402424 is an apocalyptic number.

It is an amenable number.

220402424 is an abundant number, since it is smaller than the sum of its proper divisors (232430776).

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

220402424 is a wasteful number, since it uses less digits than its factorization.

220402424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11183 (or 11179 counting only the distinct ones).

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

The square root of 220402424 is about 14845.9564865319. The cubic root of 220402424 is about 604.0489339475.

Adding to 220402424 its reverse (424204022), we get a palindrome (644606446).

The spelling of 220402424 in words is "two hundred twenty million, four hundred two thousand, four hundred twenty-four".