444642842 has 32 divisors (see below), whose sum is σ = 780668928. Its totient is φ = 185978736.

The previous prime is 444642841. The next prime is 444642851. The reversal of 444642842 is 248246444.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 444642796 and 444642805.

It is not an unprimeable number, because it can be changed into a prime (444642841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306563 + ... + 308009.

It is an arithmetic number, because the mean of its divisors is an integer number (24395904).

Almost surely, 2^444642842 is an apocalyptic number.

444642842 is a deficient number, since it is larger than the sum of its proper divisors (336026086).

444642842 is a wasteful number, since it uses less digits than its factorization.

444642842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970.

The product of its digits is 196608, while the sum is 38.

The square root of 444642842 is about 21086.5559539722. Note that the first 3 decimals coincide. The cubic root of 444642842 is about 763.2563657302.

The spelling of 444642842 in words is "four hundred forty-four million, six hundred forty-two thousand, eight hundred forty-two".