6340220 has 12 divisors (see below), whose sum is σ = 13314504. Its totient is φ = 2536080.

The previous prime is 6340219. The next prime is 6340237. The reversal of 6340220 is 220436.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 158486 + ... + 158525.

It is an arithmetic number, because the mean of its divisors is an integer number (1109542).

Almost surely, 2^6340220 is an apocalyptic number.

It is an amenable number.

6340220 is an abundant number, since it is smaller than the sum of its proper divisors (6974284).

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

6340220 is a wasteful number, since it uses less digits than its factorization.

6340220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317020 (or 317018 counting only the distinct ones).

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

The square root of 6340220 is about 2517.9793486047. The cubic root of 6340220 is about 185.0836728880.

Adding to 6340220 its reverse (220436), we get a palindrome (6560656).

The spelling of 6340220 in words is "six million, three hundred forty thousand, two hundred twenty".