6428308 has 24 divisors (see below), whose sum is σ = 12136320. Its totient is φ = 2969280.

The previous prime is 6428291. The next prime is 6428311. The reversal of 6428308 is 8038246.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6428308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085 + ... + 4147.

It is an arithmetic number, because the mean of its divisors is an integer number (505680).

Almost surely, 2^6428308 is an apocalyptic number.

It is an amenable number.

6428308 is a deficient number, since it is larger than the sum of its proper divisors (5708012).

6428308 is a wasteful number, since it uses less digits than its factorization.

6428308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127 (or 2125 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 6428308 is about 2535.4108148385. The cubic root of 6428308 is about 185.9368884428.

The spelling of 6428308 in words is "six million, four hundred twenty-eight thousand, three hundred eight".