444089668 has 48 divisors (see below), whose sum is σ = 869891904. Its totient is φ = 196669440.

The previous prime is 444089647. The next prime is 444089669. The reversal of 444089668 is 866980444.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (444089669) 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, 285180 + ... + 286732.

It is an arithmetic number, because the mean of its divisors is an integer number (18122748).

Almost surely, 2^444089668 is an apocalyptic number.

It is an amenable number.

444089668 is a deficient number, since it is larger than the sum of its proper divisors (425802236).

444089668 is a wasteful number, since it uses less digits than its factorization.

444089668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732 (or 1730 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

The square root of 444089668 is about 21073.4351257691. The cubic root of 444089668 is about 762.9397154901.

The spelling of 444089668 in words is "four hundred forty-four million, eighty-nine thousand, six hundred sixty-eight".