1304221404 has 24 divisors (see below), whose sum is σ = 3044997760. Its totient is φ = 434481264.

The previous prime is 1304221363. The next prime is 1304221409. The reversal of 1304221404 is 4041224031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304221409) 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, 10864 + ... + 52215.

Almost surely, 2^1304221404 is an apocalyptic number.

It is an amenable number.

1304221404 is an abundant number, since it is smaller than the sum of its proper divisors (1740776356).

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

1304221404 is a wasteful number, since it uses less digits than its factorization.

1304221404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64809 (or 64807 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1304221404 is about 36114.0056487784. The cubic root of 1304221404 is about 1092.5729426413.

Adding to 1304221404 its reverse (4041224031), we get a palindrome (5345445435).

The spelling of 1304221404 in words is "one billion, three hundred four million, two hundred twenty-one thousand, four hundred four".