286344628 has 12 divisors (see below), whose sum is σ = 514646692. Its totient is φ = 139302720.

The previous prime is 286344623. The next prime is 286344631. The reversal of 286344628 is 826443682.

It can be written as a sum of positive squares in 2 ways, for example, as 201299344 + 85045284 = 14188^2 + 9222^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286344623) 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 3 ways as a sum of consecutive naturals, for example, 967233 + ... + 967528.

Almost surely, 2^286344628 is an apocalyptic number.

It is an amenable number.

286344628 is a deficient number, since it is larger than the sum of its proper divisors (228302064).

286344628 is a wasteful number, since it uses less digits than its factorization.

286344628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934802 (or 1934800 counting only the distinct ones).

The product of its digits is 442368, while the sum is 43.

The square root of 286344628 is about 16921.7205980952. The cubic root of 286344628 is about 659.1177590722.

The spelling of 286344628 in words is "two hundred eighty-six million, three hundred forty-four thousand, six hundred twenty-eight".