1320336285 has 32 divisors (see below), whose sum is σ = 2165813760. Its totient is φ = 686484288.

The previous prime is 1320336253. The next prime is 1320336301. The reversal of 1320336285 is 5826330231.

It is not a de Polignac number, because 1320336285 - 2⁵ = 1320336253 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 397602 + ... + 400908.

It is an arithmetic number, because the mean of its divisors is an integer number (67681680).

Almost surely, 2^1320336285 is an apocalyptic number.

1320336285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1320336285 is a deficient number, since it is larger than the sum of its proper divisors (845477475).

1320336285 is a wasteful number, since it uses less digits than its factorization.

1320336285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1320336285 is about 36336.4319244474. The cubic root of 1320336285 is about 1097.0544570300.

The spelling of 1320336285 in words is "one billion, three hundred twenty million, three hundred thirty-six thousand, two hundred eighty-five".