286734812 has 48 divisors (see below), whose sum is σ = 632678592. Its totient is φ = 110661120.

The previous prime is 286734809. The next prime is 286734817. The reversal of 286734812 is 218437682.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 286734812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286734817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5318 + ... + 24530.

It is an arithmetic number, because the mean of its divisors is an integer number (13180804).

Almost surely, 2^286734812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 286734812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316339296).

286734812 is an abundant number, since it is smaller than the sum of its proper divisors (345943780).

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

286734812 is a wasteful number, since it uses less digits than its factorization.

286734812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19278 (or 19276 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 286734812 is about 16933.2457609284. The cubic root of 286734812 is about 659.4170027734.

The spelling of 286734812 in words is "two hundred eighty-six million, seven hundred thirty-four thousand, eight hundred twelve".