242684 has 18 divisors (see below), whose sum is σ = 461160. Its totient is φ = 111696.

The previous prime is 242681. The next prime is 242689. The reversal of 242684 is 486242.

242684 = 20³ + 21³ + ... + 32³.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nialpdrome in base 13.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 497 + ... + 855.

It is an arithmetic number, because the mean of its divisors is an integer number (25620).

2²⁴²⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

242684 is a deficient number, since it is larger than the sum of its proper divisors (218476).

242684 is a wasteful number, since it uses less digits than its factorization.

242684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 374 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 242684 is about 492.6296783589. The cubic root of 242684 is about 62.3754533081.

The spelling of 242684 in words is "two hundred forty-two thousand, six hundred eighty-four".