444641644 has 6 divisors (see below), whose sum is σ = 778122884. Its totient is φ = 222320820.

The previous prime is 444641609. The next prime is 444641651. The reversal of 444641644 is 446146444.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55580202 + ... + 55580209.

Almost surely, 2^444641644 is an apocalyptic number.

It is an amenable number.

444641644 is a deficient number, since it is larger than the sum of its proper divisors (333481240).

444641644 is a wasteful number, since it uses less digits than its factorization.

444641644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111160415 (or 111160413 counting only the distinct ones).

The product of its digits is 147456, while the sum is 37.

The square root of 444641644 is about 21086.5275472279. The cubic root of 444641644 is about 763.2556802497.

The spelling of 444641644 in words is "four hundred forty-four million, six hundred forty-one thousand, six hundred forty-four".