444703689 has 20 divisors (see below), whose sum is σ = 693196416. Its totient is φ = 283577976.

The previous prime is 444703667. The next prime is 444703691. The reversal of 444703689 is 986307444.

It is not a de Polignac number, because 444703689 - 2⁸ = 444703433 is a prime.

It is a super-2 number, since 2×444703689² = 395522742020417442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (444703639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 117489 + ... + 121214.

Almost surely, 2^444703689 is an apocalyptic number.

It is an amenable number.

444703689 is a deficient number, since it is larger than the sum of its proper divisors (248492727).

444703689 is a wasteful number, since it uses less digits than its factorization.

444703689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238738 (or 238729 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 444703689 is about 21087.9986959408. The cubic root of 444703689 is about 763.2911799956.

The spelling of 444703689 in words is "four hundred forty-four million, seven hundred three thousand, six hundred eighty-nine".