444488849 has 6 divisors (see below), whose sum is σ = 517058514. Its totient is φ = 380990400.

The previous prime is 444488833. The next prime is 444488857. The reversal of 444488849 is 948884444.

It can be written as a sum of positive squares in only one way, i.e., 422097025 + 22391824 = 20545^2 + 4732^2 .

It is not a de Polignac number, because 444488849 - 2⁴ = 444488833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444488849.

It is not an unprimeable number, because it can be changed into a prime (444488879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4535552 + ... + 4535649.

It is an arithmetic number, because the mean of its divisors is an integer number (86176419).

Almost surely, 2^444488849 is an apocalyptic number.

444488849 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

444488849 is a deficient number, since it is larger than the sum of its proper divisors (72569665).

444488849 is an equidigital number, since it uses as much as digits as its factorization.

444488849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9071215 (or 9071208 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 53.

The square root of 444488849 is about 21082.9041879908. The cubic root of 444488849 is about 763.1682427861.

The spelling of 444488849 in words is "four hundred forty-four million, four hundred eighty-eight thousand, eight hundred forty-nine".