287290472 has 32 divisors (see below), whose sum is σ = 636854400. Its totient is φ = 118878144.

The previous prime is 287290441. The next prime is 287290477. The reversal of 287290472 is 274092782.

It is not an unprimeable number, because it can be changed into a prime (287290477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86828 + ... + 90075.

It is an arithmetic number, because the mean of its divisors is an integer number (19901700).

Almost surely, 2^287290472 is an apocalyptic number.

It is an amenable number.

287290472 is an abundant number, since it is smaller than the sum of its proper divisors (349563928).

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

287290472 is a wasteful number, since it uses less digits than its factorization.

287290472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176945 (or 176941 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 287290472 is about 16949.6451880268. The cubic root of 287290472 is about 659.8426867186.

The spelling of 287290472 in words is "two hundred eighty-seven million, two hundred ninety thousand, four hundred seventy-two".