6345278 has 16 divisors (see below), whose sum is σ = 10291920. Its totient is φ = 2923776.

The previous prime is 6345271. The next prime is 6345293. The reversal of 6345278 is 8725436.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6345271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851 + ... + 3662.

It is an arithmetic number, because the mean of its divisors is an integer number (643245).

Almost surely, 2^6345278 is an apocalyptic number.

6345278 is a deficient number, since it is larger than the sum of its proper divisors (3946642).

6345278 is a wasteful number, since it uses less digits than its factorization.

6345278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571.

The product of its digits is 40320, while the sum is 35.

The square root of 6345278 is about 2518.9835251545. The cubic root of 6345278 is about 185.1328775099.

The spelling of 6345278 in words is "six million, three hundred forty-five thousand, two hundred seventy-eight".