4220756 has 6 divisors (see below), whose sum is σ = 7386330. Its totient is φ = 2110376.

The previous prime is 4220731. The next prime is 4220767. The reversal of 4220756 is 6570224.

It can be written as a sum of positive squares in only one way, i.e., 4120900 + 99856 = 2030^2 + 316^2 .

It is a d-powerful number, because it can be written as 4¹¹ + 2⁵ + 2¹³ + 0 + 7⁵ + 5³ + 6⁴ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527591 + ... + 527598.

It is an arithmetic number, because the mean of its divisors is an integer number (1231055).

Almost surely, 2^4220756 is an apocalyptic number.

It is an amenable number.

4220756 is a deficient number, since it is larger than the sum of its proper divisors (3165574).

4220756 is a wasteful number, since it uses less digits than its factorization.

4220756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055193 (or 1055191 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 4220756 is about 2054.4478576980. The cubic root of 4220756 is about 161.6082083371.

The spelling of 4220756 in words is "four million, two hundred twenty thousand, seven hundred fifty-six".