4720256 has 16 divisors (see below), whose sum is σ = 9403890. Its totient is φ = 2360064.

The previous prime is 4720231. The next prime is 4720259. The reversal of 4720256 is 6520274.

It can be written as a sum of positive squares in only one way, i.e., 3182656 + 1537600 = 1784^2 + 1240^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a d-powerful number, because it can be written as 4⁹ + 7³ + 2¹⁸ + 0 + 2²² + 5² + 6⁴ .

It is not an unprimeable number, because it can be changed into a prime (4720259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18311 + ... + 18566.

Almost surely, 2^4720256 is an apocalyptic number.

It is an amenable number.

4720256 is a deficient number, since it is larger than the sum of its proper divisors (4683634).

4720256 is an equidigital number, since it uses as much as digits as its factorization.

4720256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36891 (or 36879 counting only the distinct ones).

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

The square root of 4720256 is about 2172.6150142167. The cubic root of 4720256 is about 167.7471631380.

The spelling of 4720256 in words is "four million, seven hundred twenty thousand, two hundred fifty-six".