285457612 has 24 divisors (see below), whose sum is σ = 548129232. Its totient is φ = 129000000.

The previous prime is 285457603. The next prime is 285457619. The reversal of 285457612 is 216754582.

It is not an unprimeable number, because it can be changed into a prime (285457619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11139 + ... + 26362.

It is an arithmetic number, because the mean of its divisors is an integer number (22838718).

Almost surely, 2^285457612 is an apocalyptic number.

285457612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

285457612 is a deficient number, since it is larger than the sum of its proper divisors (262671620).

285457612 is a wasteful number, since it uses less digits than its factorization.

285457612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37689 (or 37687 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 285457612 is about 16895.4908777461. The cubic root of 285457612 is about 658.4364672833.

The spelling of 285457612 in words is "two hundred eighty-five million, four hundred fifty-seven thousand, six hundred twelve".