286399246 has 16 divisors (see below), whose sum is σ = 491220576. Its totient is φ = 122679936.

The previous prime is 286399237. The next prime is 286399249. The reversal of 286399246 is 642993682.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 286399246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286399249) by changing a digit.

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, 32730 + ... + 40546.

It is an arithmetic number, because the mean of its divisors is an integer number (30701286).

Almost surely, 2^286399246 is an apocalyptic number.

286399246 is a deficient number, since it is larger than the sum of its proper divisors (204821330).

286399246 is a wasteful number, since it uses less digits than its factorization.

286399246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443.

The product of its digits is 1119744, while the sum is 49.

The square root of 286399246 is about 16923.3343641258. The cubic root of 286399246 is about 659.1596635952.

The spelling of 286399246 in words is "two hundred eighty-six million, three hundred ninety-nine thousand, two hundred forty-six".