6628238 has 4 divisors (see below), whose sum is σ = 9942360. Its totient is φ = 3314118.

The previous prime is 6628201. The next prime is 6628247. The reversal of 6628238 is 8328266.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 6628198 and 6628207.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1657058 + ... + 1657061.

It is an arithmetic number, because the mean of its divisors is an integer number (2485590).

Almost surely, 2^6628238 is an apocalyptic number.

6628238 is a deficient number, since it is larger than the sum of its proper divisors (3314122).

6628238 is a wasteful number, since it uses less digits than its factorization.

6628238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314121.

The product of its digits is 27648, while the sum is 35.

The square root of 6628238 is about 2574.5364631327. The cubic root of 6628238 is about 187.8448811004.

The spelling of 6628238 in words is "six million, six hundred twenty-eight thousand, two hundred thirty-eight".