1220441306 has 16 divisors (see below), whose sum is σ = 2092634880. Its totient is φ = 522933840.

The previous prime is 1220441297. The next prime is 1220441309. The reversal of 1220441306 is 6031440221.

It is not an unprimeable number, because it can be changed into a prime (1220441309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115055 + ... + 125213.

It is an arithmetic number, because the mean of its divisors is an integer number (130789680).

Almost surely, 2^1220441306 is an apocalyptic number.

1220441306 is a deficient number, since it is larger than the sum of its proper divisors (872193574).

1220441306 is a wasteful number, since it uses less digits than its factorization.

1220441306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18749.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1220441306 is about 34934.8150989811. The cubic root of 1220441306 is about 1068.6585530274.

Adding to 1220441306 its reverse (6031440221), we get a palindrome (7251881527).

The spelling of 1220441306 in words is "one billion, two hundred twenty million, four hundred forty-one thousand, three hundred six".