4220535 has 16 divisors (see below), whose sum is σ = 7367040. Its totient is φ = 2046240.

The previous prime is 4220533. The next prime is 4220537. The reversal of 4220535 is 5350224.

It is an interprime number because it is at equal distance from previous prime (4220533) and next prime (4220537).

It is not a de Polignac number, because 4220535 - 2¹ = 4220533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12625 + ... + 12954.

It is an arithmetic number, because the mean of its divisors is an integer number (460440).

Almost surely, 2^4220535 is an apocalyptic number.

4220535 is a deficient number, since it is larger than the sum of its proper divisors (3146505).

4220535 is a wasteful number, since it uses less digits than its factorization.

4220535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25598.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 4220535 is about 2054.3940712531. The cubic root of 4220535 is about 161.6053876704.

Adding to 4220535 its reverse (5350224), we get a palindrome (9570759).

The spelling of 4220535 in words is "four million, two hundred twenty thousand, five hundred thirty-five".