6422278 has 8 divisors (see below), whose sum is σ = 9645120. Its totient is φ = 3207240.

The previous prime is 6422261. The next prime is 6422293. The reversal of 6422278 is 8722246.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1003 + ... + 3721.

It is an arithmetic number, because the mean of its divisors is an integer number (1205640).

Almost surely, 2^6422278 is an apocalyptic number.

6422278 is a deficient number, since it is larger than the sum of its proper divisors (3222842).

6422278 is a wasteful number, since it uses less digits than its factorization.

6422278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902.

The product of its digits is 10752, while the sum is 31.

The square root of 6422278 is about 2534.2213794379. The cubic root of 6422278 is about 185.8787316050.

Subtracting 6422278 from its reverse (8722246), we obtain a cube (2299968 = 132³).

The spelling of 6422278 in words is "six million, four hundred twenty-two thousand, two hundred seventy-eight".