287260 has 24 divisors (see below), whose sum is σ = 616896. Its totient is φ = 112320.

The previous prime is 287257. The next prime is 287269. The reversal of 287260 is 62782.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287269) 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, 925 + ... + 1195.

It is an arithmetic number, because the mean of its divisors is an integer number (25704).

2²⁸⁷²⁶⁰ is an apocalyptic number.

287260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

287260 is an abundant number, since it is smaller than the sum of its proper divisors (329636).

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

287260 is a wasteful number, since it uses less digits than its factorization.

287260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 287260 is about 535.9664168584. The cubic root of 287260 is about 65.9819356745.

The spelling of 287260 in words is "two hundred eighty-seven thousand, two hundred sixty".