4280285 has 4 divisors (see below), whose sum is σ = 5136348. Its totient is φ = 3424224.

The previous prime is 4280267. The next prime is 4280329. The reversal of 4280285 is 5820824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1951609 + 2328676 = 1397^2 + 1526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4280285 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428024 + ... + 428033.

It is an arithmetic number, because the mean of its divisors is an integer number (1284087).

Almost surely, 2^4280285 is an apocalyptic number.

It is an amenable number.

4280285 is a deficient number, since it is larger than the sum of its proper divisors (856063).

4280285 is an equidigital number, since it uses as much as digits as its factorization.

4280285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856062.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 4280285 is about 2068.8849653859. The cubic root of 4280285 is about 162.3644313094.

The spelling of 4280285 in words is "four million, two hundred eighty thousand, two hundred eighty-five".