444404447 has 4 divisors (see below), whose sum is σ = 456415416. Its totient is φ = 432393480.

The previous prime is 444404423. The next prime is 444404449. The reversal of 444404447 is 744404444.

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

It is a cyclic number.

It is not a de Polignac number, because 444404447 - 2¹⁰ = 444403423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444404449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6005429 + ... + 6005502.

It is an arithmetic number, because the mean of its divisors is an integer number (114103854).

Almost surely, 2^444404447 is an apocalyptic number.

444404447 is a deficient number, since it is larger than the sum of its proper divisors (12010969).

444404447 is a wasteful number, since it uses less digits than its factorization.

444404447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12010968.

The product of its (nonzero) digits is 114688, while the sum is 35.

The square root of 444404447 is about 21080.9024237579. The cubic root of 444404447 is about 763.1199348600.

The spelling of 444404447 in words is "four hundred forty-four million, four hundred four thousand, four hundred forty-seven".