4220560 has 20 divisors (see below), whose sum is σ = 9812988. Its totient is φ = 1688192.

The previous prime is 4220551. The next prime is 4220563. The reversal of 4220560 is 650224.

It can be written as a sum of positive squares in 2 ways, for example, as 2702736 + 1517824 = 1644^2 + 1232^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4220563) 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 3 ways as a sum of consecutive naturals, for example, 26299 + ... + 26458.

Almost surely, 2^4220560 is an apocalyptic number.

4220560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4220560 is an abundant number, since it is smaller than the sum of its proper divisors (5592428).

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

4220560 is a wasteful number, since it uses less digits than its factorization.

4220560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52770 (or 52764 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4220560 is about 2054.4001557632. The cubic root of 4220560 is about 161.6057067553.

Adding to 4220560 its reverse (650224), we get a palindrome (4870784).

It can be divided in two parts, 42 and 20560, that added together give a palindrome (20602).

The spelling of 4220560 in words is "four million, two hundred twenty thousand, five hundred sixty".