285589972 has 12 divisors (see below), whose sum is σ = 508253760. Its totient is φ = 140374616.

The previous prime is 285589963. The next prime is 285589991. The reversal of 285589972 is 279985582.

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 3 ways as a sum of consecutive naturals, for example, 604828 + ... + 605299.

It is an arithmetic number, because the mean of its divisors is an integer number (42354480).

Almost surely, 2^285589972 is an apocalyptic number.

It is an amenable number.

285589972 is a deficient number, since it is larger than the sum of its proper divisors (222663788).

285589972 is a wasteful number, since it uses less digits than its factorization.

285589972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210190 (or 1210188 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 55.

The square root of 285589972 is about 16899.4074452331. The cubic root of 285589972 is about 658.5382187410.

The spelling of 285589972 in words is "two hundred eighty-five million, five hundred eighty-nine thousand, nine hundred seventy-two".