1304224431 has 4 divisors (see below), whose sum is σ = 1738965912. Its totient is φ = 869482952.

The previous prime is 1304224403. The next prime is 1304224457. The reversal of 1304224431 is 1344224031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1304224431 - 2⁶ = 1304224367 is a prime.

It is a super-2 number, since 2×1304224431² = 3402002732834547522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304224931) 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 3 ways as a sum of consecutive naturals, for example, 217370736 + ... + 217370741.

It is an arithmetic number, because the mean of its divisors is an integer number (434741478).

Almost surely, 2^1304224431 is an apocalyptic number.

1304224431 is a deficient number, since it is larger than the sum of its proper divisors (434741481).

1304224431 is an equidigital number, since it uses as much as digits as its factorization.

1304224431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434741480.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1304224431 is about 36114.0475577025. The cubic root of 1304224431 is about 1092.5737879006.

Adding to 1304224431 its reverse (1344224031), we get a palindrome (2648448462).

It can be divided in two parts, 13042 and 24431, that added together give a palindrome (37473).

The spelling of 1304224431 in words is "one billion, three hundred four million, two hundred twenty-four thousand, four hundred thirty-one".