242485 has 4 divisors (see below), whose sum is σ = 290988. Its totient is φ = 193984.

The previous prime is 242483. The next prime is 242491. The reversal of 242485 is 584242.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 61009 + 181476 = 247^2 + 426^2 .

It is a cyclic number.

It is not a de Polignac number, because 242485 - 2¹ = 242483 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 4⁴ + 4⁴ + 2¹⁷ + 8 + 5⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242483) by changing a digit.

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, 24244 + ... + 24253.

It is an arithmetic number, because the mean of its divisors is an integer number (72747).

2²⁴²⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

242485 is a deficient number, since it is larger than the sum of its proper divisors (48503).

242485 is an equidigital number, since it uses as much as digits as its factorization.

242485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48502.

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

The square root of 242485 is about 492.4276596618. The cubic root of 242485 is about 62.3583994307.

It can be divided in two parts, 242 and 485, that multiplied together give a triangular number (117370 = T₄₈₄).

The spelling of 242485 in words is "two hundred forty-two thousand, four hundred eighty-five".