4044554636 has 12 divisors (see below), whose sum is σ = 7078449840. Its totient is φ = 2022140400.

The previous prime is 4044554617. The next prime is 4044554639. The reversal of 4044554636 is 6364554404.

It is a junction number, because it is equal to n+sod(n) for n = 4044554593 and 4044554602.

It is not an unprimeable number, because it can be changed into a prime (4044554639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62786 + ... + 109686.

It is an arithmetic number, because the mean of its divisors is an integer number (589870820).

Almost surely, 2^4044554636 is an apocalyptic number.

It is an amenable number.

4044554636 is a deficient number, since it is larger than the sum of its proper divisors (3033895204).

4044554636 is a wasteful number, since it uses less digits than its factorization.

4044554636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68464 (or 68462 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 41.

The square root of 4044554636 is about 63596.8130962551. The cubic root of 4044554636 is about 1593.2731429015.

The spelling of 4044554636 in words is "four billion, forty-four million, five hundred fifty-four thousand, six hundred thirty-six".