1304220045 has 32 divisors (see below), whose sum is σ = 2211390720. Its totient is φ = 655208960.

The previous prime is 1304220017. The next prime is 1304220053. The reversal of 1304220045 is 5400224031.

It is not a de Polignac number, because 1304220045 - 2⁵ = 1304220013 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 18729 + ... + 54398.

It is an arithmetic number, because the mean of its divisors is an integer number (69105960).

Almost surely, 2^1304220045 is an apocalyptic number.

1304220045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304220045 is a deficient number, since it is larger than the sum of its proper divisors (907170675).

1304220045 is a wasteful number, since it uses less digits than its factorization.

1304220045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73205.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1304220045 is about 36113.9868333586. The cubic root of 1304220045 is about 1092.5725631538.

Adding to 1304220045 its reverse (5400224031), we get a palindrome (6704444076).

The spelling of 1304220045 in words is "one billion, three hundred four million, two hundred twenty thousand, forty-five".