286243972 has 12 divisors (see below), whose sum is σ = 572488000. Its totient is φ = 122675976.

The previous prime is 286243963. The next prime is 286243973. The reversal of 286243972 is 279342682.

286243972 is an admirable number.

It is a super-2 number, since 2×286243972² = 163871223012673568, which contains 22 as substring.

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 not an unprimeable number, because it can be changed into a prime (286243973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5111472 + ... + 5111527.

Almost surely, 2^286243972 is an apocalyptic number.

It is an amenable number.

286243972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

286243972 is a wasteful number, since it uses less digits than its factorization.

286243972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10223010 (or 10223008 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 286243972 is about 16918.7461710376. The cubic root of 286243972 is about 659.0405188915.

The spelling of 286243972 in words is "two hundred eighty-six million, two hundred forty-three thousand, nine hundred seventy-two".