3645845384 has 32 divisors (see below), whose sum is σ = 6944192640. Its totient is φ = 1794225600.

The previous prime is 3645845363. The next prime is 3645845443. The reversal of 3645845384 is 4835485463.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169814 + ... + 190074.

It is an arithmetic number, because the mean of its divisors is an integer number (217006020).

Almost surely, 2^3645845384 is an apocalyptic number.

It is an amenable number.

3645845384 is a deficient number, since it is larger than the sum of its proper divisors (3298347256).

3645845384 is a wasteful number, since it uses less digits than its factorization.

3645845384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20621 (or 20617 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 50.

The square root of 3645845384 is about 60380.8362313739. The cubic root of 3645845384 is about 1539.0973211088.

The spelling of 3645845384 in words is "three billion, six hundred forty-five million, eight hundred forty-five thousand, three hundred eighty-four".