285928426 has 12 divisors (see below), whose sum is σ = 498916098. Its totient is φ = 122540712.

The previous prime is 285928403. The next prime is 285928427. The reversal of 285928426 is 624829582.

It can be written as a sum of positive squares in only one way, i.e., 194630401 + 91298025 = 13951^2 + 9555^2 .

It is not an unprimeable number, because it can be changed into a prime (285928427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1458721 + ... + 1458916.

Almost surely, 2^285928426 is an apocalyptic number.

285928426 is a deficient number, since it is larger than the sum of its proper divisors (212987672).

285928426 is a wasteful number, since it uses less digits than its factorization.

285928426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917653 (or 2917646 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 285928426 is about 16909.4182632047. The cubic root of 285928426 is about 658.7982616075.

The spelling of 285928426 in words is "two hundred eighty-five million, nine hundred twenty-eight thousand, four hundred twenty-six".