442432142 has 4 divisors (see below), whose sum is σ = 663648216. Its totient is φ = 221216070.

The previous prime is 442432141. The next prime is 442432147. The reversal of 442432142 is 241234244.

It is a happy number.

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 (442432141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110608034 + ... + 110608037.

It is an arithmetic number, because the mean of its divisors is an integer number (165912054).

Almost surely, 2^442432142 is an apocalyptic number.

442432142 is a deficient number, since it is larger than the sum of its proper divisors (221216074).

442432142 is a wasteful number, since it uses less digits than its factorization.

442432142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221216073.

The product of its digits is 6144, while the sum is 26.

The square root of 442432142 is about 21034.0709801978. The cubic root of 442432142 is about 761.9893300885.

Adding to 442432142 its reverse (241234244), we get a palindrome (683666386).

The spelling of 442432142 in words is "four hundred forty-two million, four hundred thirty-two thousand, one hundred forty-two".