285626730 has 16 divisors (see below), whose sum is σ = 685504224. Its totient is φ = 76167120.

The previous prime is 285626723. The next prime is 285626797. The reversal of 285626730 is 37626582.

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, 4760416 + ... + 4760475.

It is an arithmetic number, because the mean of its divisors is an integer number (42844014).

Almost surely, 2^285626730 is an apocalyptic number.

285626730 is an abundant number, since it is smaller than the sum of its proper divisors (399877494).

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

285626730 is a wasteful number, since it uses less digits than its factorization.

285626730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520901.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 285626730 is about 16900.4949631660. The cubic root of 285626730 is about 658.5664707944.

The spelling of 285626730 in words is "two hundred eighty-five million, six hundred twenty-six thousand, seven hundred thirty".