286506028 has 12 divisors (see below), whose sum is σ = 501898432. Its totient is φ = 143106480.

The previous prime is 286506023. The next prime is 286506029. The reversal of 286506028 is 820605682.

It is not an unprimeable number, because it can be changed into a prime (286506023) 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 3 ways as a sum of consecutive naturals, for example, 32175 + ... + 40102.

Almost surely, 2^286506028 is an apocalyptic number.

It is an amenable number.

286506028 is a deficient number, since it is larger than the sum of its proper divisors (215392404).

286506028 is a wasteful number, since it uses less digits than its factorization.

286506028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73272 (or 73270 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 286506028 is about 16926.4889448462. The cubic root of 286506028 is about 659.2415744734.

It can be divided in two parts, 28 and 6506028, that added together give a palindrome (6506056).

The spelling of 286506028 in words is "two hundred eighty-six million, five hundred six thousand, twenty-eight".