4272228 has 18 divisors (see below), whose sum is σ = 10799334. Its totient is φ = 1424064.

The previous prime is 4272223. The next prime is 4272239. The reversal of 4272228 is 8222724.

It can be written as a sum of positive squares in only one way, i.e., 4235364 + 36864 = 2058^2 + 192^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (4272221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59301 + ... + 59372.

It is an arithmetic number, because the mean of its divisors is an integer number (599963).

Almost surely, 2^4272228 is an apocalyptic number.

It is an amenable number.

4272228 is an abundant number, since it is smaller than the sum of its proper divisors (6527106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4272228 is a wasteful number, since it uses less digits than its factorization.

4272228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118683 (or 118678 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 4272228 is about 2066.9368640575. The cubic root of 4272228 is about 162.2624916882.

The spelling of 4272228 in words is "four million, two hundred seventy-two thousand, two hundred twenty-eight".