1304311222 has 16 divisors (see below), whose sum is σ = 1977156720. Its totient is φ = 645275808.

The previous prime is 1304311207. The next prime is 1304311223. The reversal of 1304311222 is 2221134031.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1304311222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304311223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169993 + ... + 177499.

It is an arithmetic number, because the mean of its divisors is an integer number (123572295).

Almost surely, 2^1304311222 is an apocalyptic number.

1304311222 is a deficient number, since it is larger than the sum of its proper divisors (672845498).

1304311222 is a wasteful number, since it uses less digits than its factorization.

1304311222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8415.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1304311222 is about 36115.2491615384. The cubic root of 1304311222 is about 1092.5980228574.

Adding to 1304311222 its reverse (2221134031), we get a palindrome (3525445253).

The spelling of 1304311222 in words is "one billion, three hundred four million, three hundred eleven thousand, two hundred twenty-two".