242584 has 8 divisors (see below), whose sum is σ = 454860. Its totient is φ = 121288.

The previous prime is 242551. The next prime is 242591. The reversal of 242584 is 485242.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

242584 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15154 + ... + 15169.

2²⁴²⁵⁸⁴ is an apocalyptic number.

It is an amenable number.

242584 is a deficient number, since it is larger than the sum of its proper divisors (212276).

242584 is a wasteful number, since it uses less digits than its factorization.

242584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30329 (or 30325 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 242584 is about 492.5281717831. The cubic root of 242584 is about 62.3668846863.

The spelling of 242584 in words is "two hundred forty-two thousand, five hundred eighty-four".