442113142 has 4 divisors (see below), whose sum is σ = 663169716. Its totient is φ = 221056570.

The previous prime is 442113083. The next prime is 442113163. The reversal of 442113142 is 241311244.

It is a happy number.

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

It is a super-2 number, since 2×442113142² = 390928060658224328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110528284 + ... + 110528287.

It is an arithmetic number, because the mean of its divisors is an integer number (165792429).

Almost surely, 2^442113142 is an apocalyptic number.

442113142 is a deficient number, since it is larger than the sum of its proper divisors (221056574).

442113142 is a wasteful number, since it uses less digits than its factorization.

442113142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221056573.

The product of its digits is 768, while the sum is 22.

The square root of 442113142 is about 21026.4866775218. The cubic root of 442113142 is about 761.8061509320.

Adding to 442113142 its reverse (241311244), we get a palindrome (683424386).

The spelling of 442113142 in words is "four hundred forty-two million, one hundred thirteen thousand, one hundred forty-two".