4220648 has 8 divisors (see below), whose sum is σ = 7913730. Its totient is φ = 2110320.

The previous prime is 4220639. The next prime is 4220653. The reversal of 4220648 is 8460224.

It can be written as a sum of positive squares in only one way, i.e., 3833764 + 386884 = 1958^2 + 622^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 4⁷ + 2⁷ + 2¹¹ + 0 + 6⁵ + 4¹¹ + 8 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263783 + ... + 263798.

Almost surely, 2^4220648 is an apocalyptic number.

It is an amenable number.

4220648 is a deficient number, since it is larger than the sum of its proper divisors (3693082).

4220648 is a wasteful number, since it uses less digits than its factorization.

4220648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527587 (or 527583 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 4220648 is about 2054.4215730955. The cubic root of 4220648 is about 161.6068299241.

The spelling of 4220648 in words is "four million, two hundred twenty thousand, six hundred forty-eight".