242574 has 8 divisors (see below), whose sum is σ = 485160. Its totient is φ = 80856.

The previous prime is 242551. The next prime is 242591. The reversal of 242574 is 475242.

It is a sphenic number, since it is the product of 3 distinct primes.

242574 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 in 3 ways as a sum of consecutive naturals, for example, 20209 + ... + 20220.

It is an arithmetic number, because the mean of its divisors is an integer number (60645).

2²⁴²⁵⁷⁴ is an apocalyptic number.

242574 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

242574 is a wasteful number, since it uses less digits than its factorization.

242574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40434.

The product of its digits is 2240, while the sum is 24.

The square root of 242574 is about 492.5180199749. The cubic root of 242574 is about 62.3660276946.

It can be divided in two parts, 24 and 2574, that multiplied together give a triangular number (61776 = T₃₅₁).

The spelling of 242574 in words is "two hundred forty-two thousand, five hundred seventy-four".