444729644 has 6 divisors (see below), whose sum is σ = 778276884. Its totient is φ = 222364820.

The previous prime is 444729641. The next prime is 444729671. The reversal of 444729644 is 446927444.

It is a junction number, because it is equal to n+sod(n) for n = 444729595 and 444729604.

It is not an unprimeable number, because it can be changed into a prime (444729641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55591202 + ... + 55591209.

It is an arithmetic number, because the mean of its divisors is an integer number (129712814).

Almost surely, 2^444729644 is an apocalyptic number.

It is an amenable number.

444729644 is a deficient number, since it is larger than the sum of its proper divisors (333547240).

444729644 is a wasteful number, since it uses less digits than its factorization.

444729644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111182415 (or 111182413 counting only the distinct ones).

The product of its digits is 774144, while the sum is 44.

The square root of 444729644 is about 21088.6140843821. The cubic root of 444729644 is about 763.3060294618.

The spelling of 444729644 in words is "four hundred forty-four million, seven hundred twenty-nine thousand, six hundred forty-four".