444324142 has 4 divisors (see below), whose sum is σ = 666486216. Its totient is φ = 222162070.

The previous prime is 444324137. The next prime is 444324151. The reversal of 444324142 is 241423444.

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

It is a self number, because there is not a number n which added to its sum of digits gives 444324142.

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, 111081034 + ... + 111081037.

It is an arithmetic number, because the mean of its divisors is an integer number (166621554).

Almost surely, 2^444324142 is an apocalyptic number.

444324142 is a deficient number, since it is larger than the sum of its proper divisors (222162074).

444324142 is a wasteful number, since it uses less digits than its factorization.

444324142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222162073.

The product of its digits is 12288, while the sum is 28.

The square root of 444324142 is about 21078.9976516911. The cubic root of 444324142 is about 763.0739661945.

Adding to 444324142 its reverse (241423444), we get a palindrome (685747586).

The spelling of 444324142 in words is "four hundred forty-four million, three hundred twenty-four thousand, one hundred forty-two".