4445445445 has 32 divisors (see below), whose sum is σ = 6142106880. Its totient is φ = 3025651200.

The previous prime is 4445445439. The next prime is 4445445457. The reversal of 4445445445 is 5445445444.

It is not a de Polignac number, because 4445445445 - 2⁷ = 4445445317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3416295 + ... + 3417595.

It is an arithmetic number, because the mean of its divisors is an integer number (191940840).

Almost surely, 2^4445445445 is an apocalyptic number.

It is an amenable number.

4445445445 is a deficient number, since it is larger than the sum of its proper divisors (1696661435).

4445445445 is a wasteful number, since it uses less digits than its factorization.

4445445445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965.

The product of its digits is 2048000, while the sum is 43.

The square root of 4445445445 is about 66674.1737481613. The cubic root of 4445445445 is about 1644.2648076042.

Subtracting 4445445445 from its reverse (5445445444), we obtain a palindrome (999999999).

The spelling of 4445445445 in words is "four billion, four hundred forty-five million, four hundred forty-five thousand, four hundred forty-five".