242775 has 36 divisors (see below), whose sum is σ = 473928. Its totient is φ = 118080.

The previous prime is 242773. The next prime is 242779. The reversal of 242775 is 577242.

It is not a de Polignac number, because 242775 - 2¹ = 242773 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 4⁴ + 7⁶ + 2¹¹ + 7⁶ + 5⁵ .

Its product of digits (3920) is a multiple of the sum of its prime factors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242773) 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 35 ways as a sum of consecutive naturals, for example, 2884 + ... + 2966.

2²⁴²⁷⁷⁵ is an apocalyptic number.

242775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

242775 is a deficient number, since it is larger than the sum of its proper divisors (231153).

242775 is a wasteful number, since it uses less digits than its factorization.

242775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 104 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 242775 is about 492.7220311697. The cubic root of 242775 is about 62.3832487086.

The spelling of 242775 in words is "two hundred forty-two thousand, seven hundred seventy-five".