444534689 has 4 divisors (see below), whose sum is σ = 444830400. Its totient is φ = 444238980.

The previous prime is 444534679. The next prime is 444534703. The reversal of 444534689 is 986435444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 444534689 - 2¹⁶ = 444469153 is a prime.

It is a super-2 number, since 2×444534689² = 395222179448653442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444534679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145589 + ... + 148610.

It is an arithmetic number, because the mean of its divisors is an integer number (111207600).

Almost surely, 2^444534689 is an apocalyptic number.

It is an amenable number.

444534689 is a deficient number, since it is larger than the sum of its proper divisors (295711).

444534689 is a wasteful number, since it uses less digits than its factorization.

444534689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295710.

The product of its digits is 1658880, while the sum is 47.

The square root of 444534689 is about 21083.9912967161. The cubic root of 444534689 is about 763.1944769873.

The spelling of 444534689 in words is "four hundred forty-four million, five hundred thirty-four thousand, six hundred eighty-nine".