4445445444 has 48 divisors (see below), whose sum is σ = 11484592896. Its totient is φ = 1326996000.

The previous prime is 4445445439. The next prime is 4445445457.

4445445444 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 4445445396 and 4445445405.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 242482 + ... + 260169.

It is an arithmetic number, because the mean of its divisors is an integer number (239262352).

Almost surely, 2^4445445444 is an apocalyptic number.

4445445444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4445445444 is an abundant number, since it is smaller than the sum of its proper divisors (7039147452).

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

4445445444 is a wasteful number, since it uses less digits than its factorization.

4445445444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502736 (or 502734 counting only the distinct ones).

The product of its digits is 1638400, while the sum is 42.

The square root of 4445445444 is about 66674.1737406621. The cubic root of 4445445444 is about 1644.2648074809.

It can be divided in two parts, 44454 and 45444, that added together give a palindrome (89898).

The spelling of 4445445444 in words is "four billion, four hundred forty-five million, four hundred forty-five thousand, four hundred forty-four".