424204220 has 36 divisors (see below), whose sum is σ = 979181112. Its totient is φ = 154255200.

The previous prime is 424204219. The next prime is 424204229. The reversal of 424204220 is 22402424.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 424204192 and 424204201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424204229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85226 + ... + 90065.

Almost surely, 2^424204220 is an apocalyptic number.

It is an amenable number.

424204220 is an abundant number, since it is smaller than the sum of its proper divisors (554976892).

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

424204220 is a wasteful number, since it uses less digits than its factorization.

424204220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175322 (or 175309 counting only the distinct ones).

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

The square root of 424204220 is about 20596.2185849733. The cubic root of 424204220 is about 751.3777460565.

Adding to 424204220 its reverse (22402424), we get a palindrome (446606644).

It can be divided in two parts, 424204 and 220, that added together give a palindrome (424424).

The spelling of 424204220 in words is "four hundred twenty-four million, two hundred four thousand, two hundred twenty".