1304290729 has 8 divisors (see below), whose sum is σ = 1526974848. Its totient is φ = 1090695840.

The previous prime is 1304290717. The next prime is 1304290759. The reversal of 1304290729 is 9270924031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1304290729 - 2⁵ = 1304290697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1304290759) 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, 2271997 + ... + 2272570.

It is an arithmetic number, because the mean of its divisors is an integer number (190871856).

Almost surely, 2^1304290729 is an apocalyptic number.

It is an amenable number.

1304290729 is a deficient number, since it is larger than the sum of its proper divisors (222684119).

1304290729 is an equidigital number, since it uses as much as digits as its factorization.

1304290729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544615.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 1304290729 is about 36114.9654437049. The cubic root of 1304290729 is about 1092.5923006217.

The spelling of 1304290729 in words is "one billion, three hundred four million, two hundred ninety thousand, seven hundred twenty-nine".