287342 has 16 divisors (see below), whose sum is σ = 484272. Its totient is φ = 126720.

The previous prime is 287341. The next prime is 287347. The reversal of 287342 is 243782.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287342.

It is not an unprimeable number, because it can be changed into a prime (287341) 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, 638 + ... + 990.

It is an arithmetic number, because the mean of its divisors is an integer number (30267).

2²⁸⁷³⁴² is an apocalyptic number.

287342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

287342 is a deficient number, since it is larger than the sum of its proper divisors (196930).

287342 is a wasteful number, since it uses less digits than its factorization.

287342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its digits is 2688, while the sum is 26.

The square root of 287342 is about 536.0429087303. The cubic root of 287342 is about 65.9882133834.

The spelling of 287342 in words is "two hundred eighty-seven thousand, three hundred forty-two".