285241772 has 12 divisors (see below), whose sum is σ = 499295496. Its totient is φ = 142585920.

The previous prime is 285241741. The next prime is 285241811. The reversal of 285241772 is 277142582.

285241772 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 20423 + ... + 31425.

It is an arithmetic number, because the mean of its divisors is an integer number (41607958).

Almost surely, 2^285241772 is an apocalyptic number.

It is an amenable number.

285241772 is a deficient number, since it is larger than the sum of its proper divisors (214053724).

285241772 is a wasteful number, since it uses less digits than its factorization.

285241772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17488 (or 17486 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 285241772 is about 16889.1021667820. The cubic root of 285241772 is about 658.2704732731.

The spelling of 285241772 in words is "two hundred eighty-five million, two hundred forty-one thousand, seven hundred seventy-two".