285645226 has 8 divisors (see below), whose sum is σ = 437584320. Its totient is φ = 139783788.

The previous prime is 285645193. The next prime is 285645229. The reversal of 285645226 is 622546582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (285645229) 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, 1519296 + ... + 1519483.

It is an arithmetic number, because the mean of its divisors is an integer number (54698040).

Almost surely, 2^285645226 is an apocalyptic number.

285645226 is a deficient number, since it is larger than the sum of its proper divisors (151939094).

285645226 is a wasteful number, since it uses less digits than its factorization.

285645226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038828.

The product of its digits is 230400, while the sum is 40.

The square root of 285645226 is about 16901.0421572162. The cubic root of 285645226 is about 658.5806858301.

The spelling of 285645226 in words is "two hundred eighty-five million, six hundred forty-five thousand, two hundred twenty-six".