4220273 has 4 divisors (see below), whose sum is σ = 4228260. Its totient is φ = 4212288.

The previous prime is 4220269. The next prime is 4220287. The reversal of 4220273 is 3720224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2053489 + 2166784 = 1433^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 4220273 - 2² = 4220269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4220243) 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, 3140 + ... + 4277.

It is an arithmetic number, because the mean of its divisors is an integer number (1057065).

Almost surely, 2^4220273 is an apocalyptic number.

It is an amenable number.

4220273 is a deficient number, since it is larger than the sum of its proper divisors (7987).

4220273 is an equidigital number, since it uses as much as digits as its factorization.

4220273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7986.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 4220273 is about 2054.3303045031. The cubic root of 4220273 is about 161.6020435851.

Adding to 4220273 its reverse (3720224), we get a palindrome (7940497).

The spelling of 4220273 in words is "four million, two hundred twenty thousand, two hundred seventy-three".