287160028 has 12 divisors (see below), whose sum is σ = 504913192. Its totient is φ = 142899120.

The previous prime is 287160019. The next prime is 287160031. The reversal of 287160028 is 820061782.

It is a junction number, because it is equal to n+sod(n) for n = 287159975 and 287160002.

It is a congruent number.

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, 169275 + ... + 170962.

Almost surely, 2^287160028 is an apocalyptic number.

It is an amenable number.

287160028 is a deficient number, since it is larger than the sum of its proper divisors (217753164).

287160028 is a wasteful number, since it uses less digits than its factorization.

287160028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340452 (or 340450 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 287160028 is about 16945.7967649798. The cubic root of 287160028 is about 659.7428045922.

The spelling of 287160028 in words is "two hundred eighty-seven million, one hundred sixty thousand, twenty-eight".