285332664 has 32 divisors (see below), whose sum is σ = 744347520. Its totient is φ = 90975456.

The previous prime is 285332657. The next prime is 285332701. The reversal of 285332664 is 466233582.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257902 + ... + 259005.

It is an arithmetic number, because the mean of its divisors is an integer number (23260860).

Almost surely, 2^285332664 is an apocalyptic number.

285332664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

285332664 is an abundant number, since it is smaller than the sum of its proper divisors (459014856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285332664 is a wasteful number, since it uses less digits than its factorization.

285332664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516939 (or 516935 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 285332664 is about 16891.7928000553. The cubic root of 285332664 is about 658.3403849198.

The spelling of 285332664 in words is "two hundred eighty-five million, three hundred thirty-two thousand, six hundred sixty-four".