444634142 has 4 divisors (see below), whose sum is σ = 666951216. Its totient is φ = 222317070.

The previous prime is 444634123. The next prime is 444634153. The reversal of 444634142 is 241436444.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 444634099 and 444634108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111158534 + ... + 111158537.

It is an arithmetic number, because the mean of its divisors is an integer number (166737804).

Almost surely, 2^444634142 is an apocalyptic number.

444634142 is a deficient number, since it is larger than the sum of its proper divisors (222317074).

444634142 is a wasteful number, since it uses less digits than its factorization.

444634142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222317073.

The product of its digits is 36864, while the sum is 32.

The square root of 444634142 is about 21086.3496603846. The cubic root of 444634142 is about 763.2513876721.

The spelling of 444634142 in words is "four hundred forty-four million, six hundred thirty-four thousand, one hundred forty-two".