242420042 has 4 divisors (see below), whose sum is σ = 363630066. Its totient is φ = 121210020.

The previous prime is 242420029. The next prime is 242420053. The reversal of 242420042 is 240024242.

242420042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 242082481 + 337561 = 15559^2 + 581^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242419996 and 242420023.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 60605009 + ... + 60605012.

Almost surely, 2^242420042 is an apocalyptic number.

242420042 is a deficient number, since it is larger than the sum of its proper divisors (121210024).

242420042 is a wasteful number, since it uses less digits than its factorization.

242420042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121210023.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 242420042 is about 15569.8439940804. The cubic root of 242420042 is about 623.5283064825.

Adding to 242420042 its reverse (240024242), we get a palindrome (482444284).

It can be divided in two parts, 2424200 and 42, that added together give a palindrome (2424242).

The spelling of 242420042 in words is "two hundred forty-two million, four hundred twenty thousand, forty-two".