286506234 has 144 divisors (see below), whose sum is σ = 766348128. Its totient is φ = 79960608.

The previous prime is 286506221. The next prime is 286506293. The reversal of 286506234 is 432605682.

286506234 is a `hidden beast` number, since 28 + 6 + 5 + 0 + 623 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1262029 + ... + 1262255.

It is an arithmetic number, because the mean of its divisors is an integer number (5321862).

Almost surely, 2^286506234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 286506234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383174064).

286506234 is an abundant number, since it is smaller than the sum of its proper divisors (479841894).

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

286506234 is a wasteful number, since it uses less digits than its factorization.

286506234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 286506234 is about 16926.4950299818. The cubic root of 286506234 is about 659.2417324733.

The spelling of 286506234 in words is "two hundred eighty-six million, five hundred six thousand, two hundred thirty-four".