244120042 has 4 divisors (see below), whose sum is σ = 366180066. Its totient is φ = 122060020.

The previous prime is 244120013. The next prime is 244120049. The reversal of 244120042 is 240021442.

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., 194853681 + 49266361 = 13959^2 + 7019^2 .

It is not an unprimeable number, because it can be changed into a prime (244120049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61030009 + ... + 61030012.

Almost surely, 2^244120042 is an apocalyptic number.

244120042 is a deficient number, since it is larger than the sum of its proper divisors (122060024).

244120042 is a wasteful number, since it uses less digits than its factorization.

244120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122060023.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 244120042 is about 15624.3413301169. The cubic root of 244120042 is about 624.9824353464.

Adding to 244120042 its reverse (240021442), we get a palindrome (484141484).

The spelling of 244120042 in words is "two hundred forty-four million, one hundred twenty thousand, forty-two".