285148256 has 24 divisors (see below), whose sum is σ = 562784040. Its totient is φ = 142219008.

The previous prime is 285148247. The next prime is 285148277. The reversal of 285148256 is 652841582.

It is a happy number.

It is a congruent number.

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, 2195 + ... + 23981.

It is an arithmetic number, because the mean of its divisors is an integer number (23449335).

Almost surely, 2^285148256 is an apocalyptic number.

It is an amenable number.

285148256 is a deficient number, since it is larger than the sum of its proper divisors (277635784).

285148256 is a wasteful number, since it uses less digits than its factorization.

285148256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22206 (or 22198 counting only the distinct ones).

The product of its digits is 153600, while the sum is 41.

The square root of 285148256 is about 16886.3334090027. Note that the first 3 decimals coincide. The cubic root of 285148256 is about 658.1985278147.

The spelling of 285148256 in words is "two hundred eighty-five million, one hundred forty-eight thousand, two hundred fifty-six".