4639228 has 12 divisors (see below), whose sum is σ = 8856792. Its totient is φ = 2108720.

The previous prime is 4639189. The next prime is 4639237. The reversal of 4639228 is 8229364.

It is a junction number, because it is equal to n+sod(n) for n = 4639193 and 4639202.

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, 52675 + ... + 52762.

It is an arithmetic number, because the mean of its divisors is an integer number (738066).

Almost surely, 2^4639228 is an apocalyptic number.

It is an amenable number.

4639228 is a deficient number, since it is larger than the sum of its proper divisors (4217564).

4639228 is a wasteful number, since it uses less digits than its factorization.

4639228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105452 (or 105450 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 4639228 is about 2153.8867193982. The cubic root of 4639228 is about 166.7817676035.

The spelling of 4639228 in words is "four million, six hundred thirty-nine thousand, two hundred twenty-eight".