342666242 has 4 divisors (see below), whose sum is σ = 513999366. Its totient is φ = 171333120.

The previous prime is 342666239. The next prime is 342666283. The reversal of 342666242 is 242666243.

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., 215179561 + 127486681 = 14669^2 + 11291^2 .

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, 85666559 + ... + 85666562.

Almost surely, 2^342666242 is an apocalyptic number.

342666242 is a deficient number, since it is larger than the sum of its proper divisors (171333124).

342666242 is a wasteful number, since it uses less digits than its factorization.

342666242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171333123.

The product of its digits is 82944, while the sum is 35.

The square root of 342666242 is about 18511.2463653856. The cubic root of 342666242 is about 699.7728800588.

Subtracting from 342666242 its reverse (242666243), we obtain a palindrome (99999999).

The spelling of 342666242 in words is "three hundred forty-two million, six hundred sixty-six thousand, two hundred forty-two".