285104228 has 12 divisors (see below), whose sum is σ = 520625280. Its totient is φ = 136354152.

The previous prime is 285104213. The next prime is 285104231. The reversal of 285104228 is 822401582.

It is a junction number, because it is equal to n+sod(n) for n = 285104194 and 285104203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549388 + ... + 1549571.

It is an arithmetic number, because the mean of its divisors is an integer number (43385440).

Almost surely, 2^285104228 is an apocalyptic number.

It is an amenable number.

285104228 is a deficient number, since it is larger than the sum of its proper divisors (235521052).

285104228 is a wasteful number, since it uses less digits than its factorization.

285104228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098986 (or 3098984 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 285104228 is about 16885.0297008919. The cubic root of 285104228 is about 658.1646499333.

The spelling of 285104228 in words is "two hundred eighty-five million, one hundred four thousand, two hundred twenty-eight".