4045665444 has 24 divisors (see below), whose sum is σ = 9441405120. Its totient is φ = 1348338144.

The previous prime is 4045665419. The next prime is 4045665479. The reversal of 4045665444 is 4445665404.

4045665444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4045665396 and 4045665405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62362 + ... + 109454.

It is an arithmetic number, because the mean of its divisors is an integer number (393391880).

Almost surely, 2^4045665444 is an apocalyptic number.

It is an amenable number.

4045665444 is an abundant number, since it is smaller than the sum of its proper divisors (5395739676).

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

4045665444 is a wasteful number, since it uses less digits than its factorization.

4045665444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54259 (or 54257 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 42.

The square root of 4045665444 is about 63605.5457016132. The cubic root of 4045665444 is about 1593.4189899077.

The spelling of 4045665444 in words is "four billion, forty-five million, six hundred sixty-five thousand, four hundred forty-four".