242582 has 4 divisors (see below), whose sum is σ = 363876. Its totient is φ = 121290.

The previous prime is 242551. The next prime is 242591. The reversal of 242582 is 285242.

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

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60644 + ... + 60647.

It is an arithmetic number, because the mean of its divisors is an integer number (90969).

2²⁴²⁵⁸² is an apocalyptic number.

242582 is a deficient number, since it is larger than the sum of its proper divisors (121294).

242582 is a wasteful number, since it uses less digits than its factorization.

242582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121293.

The product of its digits is 1280, while the sum is 23.

The square root of 242582 is about 492.5261414382. The cubic root of 242582 is about 62.3667132898.

It can be divided in two parts, 24258 and 2, that multiplied together give a triangular number (48516 = T₃₁₁).

The spelling of 242582 in words is "two hundred forty-two thousand, five hundred eighty-two".