1320285 has 8 divisors (see below), whose sum is σ = 2112480. Its totient is φ = 704144.

The previous prime is 1320251. The next prime is 1320287. The reversal of 1320285 is 5820231.

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 1320285 - 2⁷ = 1320157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43995 + ... + 44024.

It is an arithmetic number, because the mean of its divisors is an integer number (264060).

2^1320285 is an apocalyptic number.

1320285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1320285 is a deficient number, since it is larger than the sum of its proper divisors (792195).

1320285 is an equidigital number, since it uses as much as digits as its factorization.

1320285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88027.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1320285 is about 1149.0365529434. The cubic root of 1320285 is about 109.7040252778.

The spelling of 1320285 in words is "one million, three hundred twenty thousand, two hundred eighty-five".