4445544212 has 48 divisors (see below), whose sum is σ = 8371883520. Its totient is φ = 2060822400.

The previous prime is 4445544203. The next prime is 4445544223. The reversal of 4445544212 is 2124455444.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466358 + ... + 475794.

It is an arithmetic number, because the mean of its divisors is an integer number (174414240).

Almost surely, 2^4445544212 is an apocalyptic number.

It is an amenable number.

4445544212 is a deficient number, since it is larger than the sum of its proper divisors (3926339308).

4445544212 is a wasteful number, since it uses less digits than its factorization.

4445544212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9632 (or 9630 counting only the distinct ones).

The product of its digits is 102400, while the sum is 35.

The square root of 4445544212 is about 66674.9144131434. The cubic root of 4445544212 is about 1644.2769847040.

Adding to 4445544212 its reverse (2124455444), we get a palindrome (6569999656).

The spelling of 4445544212 in words is "four billion, four hundred forty-five million, five hundred forty-four thousand, two hundred twelve".