285130686 has 8 divisors (see below), whose sum is σ = 570261384. Its totient is φ = 95043560.

The previous prime is 285130633. The next prime is 285130691. The reversal of 285130686 is 686031582.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

285130686 is an admirable 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, 23760885 + ... + 23760896.

It is an arithmetic number, because the mean of its divisors is an integer number (71282673).

Almost surely, 2^285130686 is an apocalyptic number.

285130686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

285130686 is a wasteful number, since it uses less digits than its factorization.

285130686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47521786.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 285130686 is about 16885.8131577961. The cubic root of 285130686 is about 658.1850087822.

The spelling of 285130686 in words is "two hundred eighty-five million, one hundred thirty thousand, six hundred eighty-six".