286004838 has 64 divisors (see below), whose sum is σ = 699079680. Its totient is φ = 76142592.

The previous prime is 286004819. The next prime is 286004863. The reversal of 286004838 is 838400682.

It is a junction number, because it is equal to n+sod(n) for n = 286004796 and 286004805.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 71598 + ... + 75486.

It is an arithmetic number, because the mean of its divisors is an integer number (10923120).

Almost surely, 2^286004838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 286004838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349539840).

286004838 is an abundant number, since it is smaller than the sum of its proper divisors (413074842).

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

286004838 is a wasteful number, since it uses less digits than its factorization.

286004838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 286004838 is about 16911.6775631514. The cubic root of 286004838 is about 658.8569425040.

The spelling of 286004838 in words is "two hundred eighty-six million, four thousand, eight hundred thirty-eight".