285289112 has 8 divisors (see below), whose sum is σ = 534917100. Its totient is φ = 142644552.

The previous prime is 285289097. The next prime is 285289157. The reversal of 285289112 is 211982582.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17830562 + ... + 17830577.

Almost surely, 2^285289112 is an apocalyptic number.

It is an amenable number.

285289112 is a deficient number, since it is larger than the sum of its proper divisors (249627988).

285289112 is a wasteful number, since it uses less digits than its factorization.

285289112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35661145 (or 35661141 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 285289112 is about 16890.5036040966. The cubic root of 285289112 is about 658.3068877625.

The spelling of 285289112 in words is "two hundred eighty-five million, two hundred eighty-nine thousand, one hundred twelve".