4045444220 has 12 divisors (see below), whose sum is σ = 8495432904. Its totient is φ = 1618177680.

The previous prime is 4045444201. The next prime is 4045444237. The reversal of 4045444220 is 224445404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101136086 + ... + 101136125.

It is an arithmetic number, because the mean of its divisors is an integer number (707952742).

Almost surely, 2^4045444220 is an apocalyptic number.

It is an amenable number.

4045444220 is an abundant number, since it is smaller than the sum of its proper divisors (4449988684).

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

4045444220 is a wasteful number, since it uses less digits than its factorization.

4045444220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202272220 (or 202272218 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 4045444220 is about 63603.8066470868. The cubic root of 4045444220 is about 1593.3899457407.

Adding to 4045444220 its reverse (224445404), we get a palindrome (4269889624).

The spelling of 4045444220 in words is "four billion, forty-five million, four hundred forty-four thousand, two hundred twenty".