4272656 has 20 divisors (see below), whose sum is σ = 8366652. Its totient is φ = 2113536.

The previous prime is 4272613. The next prime is 4272659. The reversal of 4272656 is 6562724.

4272656 = 160² + 161² + ... + 256².

It can be written as a sum of positive squares in 2 ways, for example, as 3097600 + 1175056 = 1760^2 + 1084^2 .

It is a d-powerful number, because it can be written as 4¹¹ + 2³ + 7² + 2⁷ + 6 + 5⁷ + 6² .

It is not an unprimeable number, because it can be changed into a prime (4272659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176 + ... + 2928.

Almost surely, 2^4272656 is an apocalyptic number.

It is an amenable number.

4272656 is a deficient number, since it is larger than the sum of its proper divisors (4093996).

4272656 is a wasteful number, since it uses less digits than its factorization.

4272656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2852 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 4272656 is about 2067.0403963155. The cubic root of 4272656 is about 162.2679100966.

The spelling of 4272656 in words is "four million, two hundred seventy-two thousand, six hundred fifty-six".