4220264 has 8 divisors (see below), whose sum is σ = 7913010. Its totient is φ = 2110128.

The previous prime is 4220243. The next prime is 4220269. The reversal of 4220264 is 4620224.

It can be written as a sum of positive squares in only one way, i.e., 3771364 + 448900 = 1942^2 + 670^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (4220269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263759 + ... + 263774.

Almost surely, 2^4220264 is an apocalyptic number.

It is an amenable number.

4220264 is a deficient number, since it is larger than the sum of its proper divisors (3692746).

4220264 is a wasteful number, since it uses less digits than its factorization.

4220264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527539 (or 527535 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4220264 is about 2054.3281140071. The cubic root of 4220264 is about 161.6019287095.

Adding to 4220264 its reverse (4620224), we get a palindrome (8840488).

The spelling of 4220264 in words is "four million, two hundred twenty thousand, two hundred sixty-four".