242906 has 4 divisors (see below), whose sum is σ = 364362. Its totient is φ = 121452.

The previous prime is 242887. The next prime is 242911. The reversal of 242906 is 609242.

242906 is nontrivially palindromic in base 14.

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

It can be written as a sum of positive squares in only one way, i.e., 167281 + 75625 = 409^2 + 275^2 .

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 as a sum of consecutive naturals, namely, 60725 + ... + 60728.

2²⁴²⁹⁰⁶ is an apocalyptic number.

242906 is a deficient number, since it is larger than the sum of its proper divisors (121456).

242906 is a wasteful number, since it uses less digits than its factorization.

242906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121455.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 242906 is about 492.8549482353. The cubic root of 242906 is about 62.3944672390.

The spelling of 242906 in words is "two hundred forty-two thousand, nine hundred six".