445005444 has 24 divisors (see below), whose sum is σ = 1118219200. Its totient is φ = 136924704.

The previous prime is 445005443. The next prime is 445005521. The reversal of 445005444 is 444500544.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (445005443) 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 7 ways as a sum of consecutive naturals, for example, 1426144 + ... + 1426455.

Almost surely, 2^445005444 is an apocalyptic number.

It is an amenable number.

445005444 is an abundant number, since it is smaller than the sum of its proper divisors (673213756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445005444 is a wasteful number, since it uses less digits than its factorization.

445005444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852619 (or 2852617 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 445005444 is about 21095.1521445094. The cubic root of 445005444 is about 763.4637854548.

Adding to 445005444 its reverse (444500544), we get a palindrome (889505988).

The spelling of 445005444 in words is "four hundred forty-five million, five thousand, four hundred forty-four".