285224226 has 32 divisors (see below), whose sum is σ = 661678080. Its totient is φ = 80275536.

The previous prime is 285224179. The next prime is 285224239. The reversal of 285224226 is 622422582.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47866 + ... + 53493.

It is an arithmetic number, because the mean of its divisors is an integer number (20677440).

Almost surely, 2^285224226 is an apocalyptic number.

285224226 is an abundant number, since it is smaller than the sum of its proper divisors (376453854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285224226 is a wasteful number, since it uses less digits than its factorization.

285224226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101438.

The product of its digits is 30720, while the sum is 33.

The square root of 285224226 is about 16888.5827114060. The cubic root of 285224226 is about 658.2569756585.

The spelling of 285224226 in words is "two hundred eighty-five million, two hundred twenty-four thousand, two hundred twenty-six".