1304000285 has 16 divisors (see below), whose sum is σ = 1831963392. Its totient is φ = 872361600.

The previous prime is 1304000281. The next prime is 1304000293. The reversal of 1304000285 is 5820004031.

It is not a de Polignac number, because 1304000285 - 2² = 1304000281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1304000285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304000281) 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 15 ways as a sum of consecutive naturals, for example, 452921 + ... + 455790.

It is an arithmetic number, because the mean of its divisors is an integer number (114497712).

Almost surely, 2^1304000285 is an apocalyptic number.

It is an amenable number.

1304000285 is a deficient number, since it is larger than the sum of its proper divisors (527963107).

1304000285 is an equidigital number, since it uses as much as digits as its factorization.

1304000285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908764.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1304000285 is about 36110.9441167079. The cubic root of 1304000285 is about 1092.5111938487.

The spelling of 1304000285 in words is "one billion, three hundred four million, two hundred eighty-five", and thus it is an aban number.