4220522 has 8 divisors (see below), whose sum is σ = 6703236. Its totient is φ = 1986112.

The previous prime is 4220521. The next prime is 4220533. The reversal of 4220522 is 2250224.

It can be written as a sum of positive squares in 2 ways, for example, as 4157521 + 63001 = 2039^2 + 251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 4220522.

It is not an unprimeable number, because it can be changed into a prime (4220521) 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, 62033 + ... + 62100.

Almost surely, 2^4220522 is an apocalyptic number.

4220522 is a deficient number, since it is larger than the sum of its proper divisors (2482714).

4220522 is a wasteful number, since it uses less digits than its factorization.

4220522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124152.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 4220522 is about 2054.3909073008. The cubic root of 4220522 is about 161.6052217458.

Adding to 4220522 its reverse (2250224), we get a palindrome (6470746).

The spelling of 4220522 in words is "four million, two hundred twenty thousand, five hundred twenty-two".