286530212 has 12 divisors (see below), whose sum is σ = 504327516. Its totient is φ = 142436640.

The previous prime is 286530191. The next prime is 286530221. The reversal of 286530212 is 212035682.

It can be written as a sum of positive squares in 2 ways, for example, as 251412736 + 35117476 = 15856^2 + 5926^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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, 206339 + ... + 207722.

It is an arithmetic number, because the mean of its divisors is an integer number (42027293).

Almost surely, 2^286530212 is an apocalyptic number.

It is an amenable number.

286530212 is a deficient number, since it is larger than the sum of its proper divisors (217797304).

286530212 is a wasteful number, since it uses less digits than its factorization.

286530212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414238 (or 414236 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 286530212 is about 16927.2033130107. The cubic root of 286530212 is about 659.2601228321.

Adding to 286530212 its reverse (212035682), we get a palindrome (498565894).

The spelling of 286530212 in words is "two hundred eighty-six million, five hundred thirty thousand, two hundred twelve".