444442142 has 4 divisors (see below), whose sum is σ = 666663216. Its totient is φ = 222221070.

The previous prime is 444442127. The next prime is 444442147. The reversal of 444442142 is 241244444.

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 (444442147) 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, 111110534 + ... + 111110537.

It is an arithmetic number, because the mean of its divisors is an integer number (166665804).

Almost surely, 2^444442142 is an apocalyptic number.

444442142 is a deficient number, since it is larger than the sum of its proper divisors (222221074).

444442142 is a wasteful number, since it uses less digits than its factorization.

444442142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222221073.

The product of its digits is 16384, while the sum is 29.

The square root of 444442142 is about 21081.7964604537. The cubic root of 444442142 is about 763.1415105461.

Adding to 444442142 its reverse (241244444), we get a palindrome (685686586).

The spelling of 444442142 in words is "four hundred forty-four million, four hundred forty-two thousand, one hundred forty-two".