285028413 has 4 divisors (see below), whose sum is σ = 380037888. Its totient is φ = 190018940.

The previous prime is 285028411. The next prime is 285028421. The reversal of 285028413 is 314820582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 285028413 - 2¹ = 285028411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285028411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47504733 + ... + 47504738.

It is an arithmetic number, because the mean of its divisors is an integer number (95009472).

Almost surely, 2^285028413 is an apocalyptic number.

It is an amenable number.

285028413 is a deficient number, since it is larger than the sum of its proper divisors (95009475).

285028413 is an equidigital number, since it uses as much as digits as its factorization.

285028413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95009474.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 285028413 is about 16882.7845155946. The cubic root of 285028413 is about 658.1063049823.

Adding to 285028413 its reverse (314820582), we get a palindrome (599848995).

The spelling of 285028413 in words is "two hundred eighty-five million, twenty-eight thousand, four hundred thirteen".