287042468 has 12 divisors (see below), whose sum is σ = 502447260. Its totient is φ = 143486112.

The previous prime is 287042449. The next prime is 287042491. The reversal of 287042468 is 864240782.

It can be written as a sum of positive squares in 2 ways, for example, as 116165284 + 170877184 = 10778^2 + 13072^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20330 + ... + 31422.

It is an arithmetic number, because the mean of its divisors is an integer number (41870605).

Almost surely, 2^287042468 is an apocalyptic number.

It is an amenable number.

287042468 is a deficient number, since it is larger than the sum of its proper divisors (215404792).

287042468 is a wasteful number, since it uses less digits than its factorization.

287042468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17566 (or 17564 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 287042468 is about 16942.3277031227. The cubic root of 287042468 is about 659.6527619412.

The spelling of 287042468 in words is "two hundred eighty-seven million, forty-two thousand, four hundred sixty-eight".