1304222431 has 4 divisors (see below), whose sum is σ = 1305946072. Its totient is φ = 1302498792.

The previous prime is 1304222401. The next prime is 1304222449. The reversal of 1304222431 is 1342224031.

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 1304222431 - 2⁵ = 1304222399 is a prime.

It is a super-2 number, since 2×1304222431² = 3401992299047099522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304222401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860685 + ... + 862198.

It is an arithmetic number, because the mean of its divisors is an integer number (326486518).

Almost surely, 2^1304222431 is an apocalyptic number.

1304222431 is a deficient number, since it is larger than the sum of its proper divisors (1723641).

1304222431 is an equidigital number, since it uses as much as digits as its factorization.

1304222431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723640.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1304222431 is about 36114.0198676359. The cubic root of 1304222431 is about 1092.5732294209.

Adding to 1304222431 its reverse (1342224031), we get a palindrome (2646446462).

The spelling of 1304222431 in words is "one billion, three hundred four million, two hundred twenty-two thousand, four hundred thirty-one".