442105142 has 4 divisors (see below), whose sum is σ = 663157716. Its totient is φ = 221052570.

The previous prime is 442105127. The next prime is 442105163. The reversal of 442105142 is 241501244.

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

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, 110526284 + ... + 110526287.

It is an arithmetic number, because the mean of its divisors is an integer number (165789429).

Almost surely, 2^442105142 is an apocalyptic number.

442105142 is a deficient number, since it is larger than the sum of its proper divisors (221052574).

442105142 is a wasteful number, since it uses less digits than its factorization.

442105142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221052573.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 442105142 is about 21026.2964404100. The cubic root of 442105142 is about 761.8015559649.

Adding to 442105142 its reverse (241501244), we get a palindrome (683606386).

The spelling of 442105142 in words is "four hundred forty-two million, one hundred five thousand, one hundred forty-two".