242902 has 16 divisors (see below), whose sum is σ = 406224. Its totient is φ = 108000.

The previous prime is 242887. The next prime is 242911. The reversal of 242902 is 209242.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 242902.

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 7 ways as a sum of consecutive naturals, for example, 1252 + ... + 1432.

It is an arithmetic number, because the mean of its divisors is an integer number (25389).

2²⁴²⁹⁰² is an apocalyptic number.

242902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

242902 is a deficient number, since it is larger than the sum of its proper divisors (163322).

242902 is a wasteful number, since it uses less digits than its factorization.

242902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 242902 is about 492.8508902295. The cubic root of 242902 is about 62.3941247482.

It can be divided in two parts, 24 and 2902, that added together give a triangular number (2926 = T₇₆).

The spelling of 242902 in words is "two hundred forty-two thousand, nine hundred two".