287422876 has 48 divisors (see below), whose sum is σ = 575811936. Its totient is φ = 124360704.

The previous prime is 287422873. The next prime is 287422901. The reversal of 287422876 is 678224782.

It is a super-2 number, since 2×287422876² = 165223819296222752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287422873) 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 15 ways as a sum of consecutive naturals, for example, 306280 + ... + 307216.

It is an arithmetic number, because the mean of its divisors is an integer number (11996082).

Almost surely, 2^287422876 is an apocalyptic number.

287422876 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

287422876 is an abundant number, since it is smaller than the sum of its proper divisors (288389060).

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

287422876 is a wasteful number, since it uses less digits than its factorization.

287422876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1316 counting only the distinct ones).

The product of its digits is 602112, while the sum is 46.

The square root of 287422876 is about 16953.5505425855. The cubic root of 287422876 is about 659.9440387201.

The spelling of 287422876 in words is "two hundred eighty-seven million, four hundred twenty-two thousand, eight hundred seventy-six".