6430220 has 24 divisors (see below), whose sum is σ = 13819344. Its totient is φ = 2511936.

The previous prime is 6430219. The next prime is 6430223. The reversal of 6430220 is 220346.

It is not an unprimeable number, because it can be changed into a prime (6430223) 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, 2879 + ... + 4598.

It is an arithmetic number, because the mean of its divisors is an integer number (575806).

Almost surely, 2^6430220 is an apocalyptic number.

It is an amenable number.

6430220 is an abundant number, since it is smaller than the sum of its proper divisors (7389124).

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

6430220 is a wasteful number, since it uses less digits than its factorization.

6430220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7529 (or 7527 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 6430220 is about 2535.7878460155. The cubic root of 6430220 is about 185.9553212916.

Adding to 6430220 its reverse (220346), we get a palindrome (6650566).

The spelling of 6430220 in words is "six million, four hundred thirty thousand, two hundred twenty".