444840769 has 4 divisors (see below), whose sum is σ = 464181696. Its totient is φ = 425499844.

The previous prime is 444840743. The next prime is 444840791. The reversal of 444840769 is 967048444.

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 444840769 - 2²¹ = 442743617 is a prime.

It is a super-2 number, since 2×444840769² = 395766619529022722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444847769) 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, 9670429 + ... + 9670474.

It is an arithmetic number, because the mean of its divisors is an integer number (116045424).

Almost surely, 2^444840769 is an apocalyptic number.

It is an amenable number.

444840769 is a deficient number, since it is larger than the sum of its proper divisors (19340927).

444840769 is a wasteful number, since it uses less digits than its factorization.

444840769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19340926.

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 444840769 is about 21091.2486353938. The cubic root of 444840769 is about 763.3696001575.

The spelling of 444840769 in words is "four hundred forty-four million, eight hundred forty thousand, seven hundred sixty-nine".