288542 has 4 divisors (see below), whose sum is σ = 432816. Its totient is φ = 144270.

The previous prime is 288539. The next prime is 288551. The reversal of 288542 is 245882.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

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 288542.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72134 + ... + 72137.

It is an arithmetic number, because the mean of its divisors is an integer number (108204).

2²⁸⁸⁵⁴² is an apocalyptic number.

288542 is a deficient number, since it is larger than the sum of its proper divisors (144274).

288542 is a wasteful number, since it uses less digits than its factorization.

288542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144273.

The product of its digits is 5120, while the sum is 29.

The square root of 288542 is about 537.1610559227. The cubic root of 288542 is about 66.0799459749.

The spelling of 288542 in words is "two hundred eighty-eight thousand, five hundred forty-two".