286303240 has 32 divisors (see below), whose sum is σ = 653261760. Its totient is φ = 112907200.

The previous prime is 286303231. The next prime is 286303243. The reversal of 286303240 is 42303682.

It is a junction number, because it is equal to n+sod(n) for n = 286303199 and 286303208.

It is not an unprimeable number, because it can be changed into a prime (286303243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47566 + ... + 53245.

It is an arithmetic number, because the mean of its divisors is an integer number (20414430).

Almost surely, 2^286303240 is an apocalyptic number.

286303240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

286303240 is an abundant number, since it is smaller than the sum of its proper divisors (366958520).

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

286303240 is a wasteful number, since it uses less digits than its factorization.

286303240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100893 (or 100889 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 286303240 is about 16920.4976286160. The cubic root of 286303240 is about 659.0860014422.

The spelling of 286303240 in words is "two hundred eighty-six million, three hundred three thousand, two hundred forty".