442224142 has 4 divisors (see below), whose sum is σ = 663336216. Its totient is φ = 221112070.

The previous prime is 442224131. The next prime is 442224143. The reversal of 442224142 is 241422244.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442224143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556034 + ... + 110556037.

It is an arithmetic number, because the mean of its divisors is an integer number (165834054).

Almost surely, 2^442224142 is an apocalyptic number.

442224142 is a deficient number, since it is larger than the sum of its proper divisors (221112074).

442224142 is a wasteful number, since it uses less digits than its factorization.

442224142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221112073.

The product of its digits is 4096, while the sum is 25.

The square root of 442224142 is about 21029.1260398524. The cubic root of 442224142 is about 761.8699003805.

Adding to 442224142 its reverse (241422244), we get a palindrome (683646386).

The spelling of 442224142 in words is "four hundred forty-two million, two hundred twenty-four thousand, one hundred forty-two".