4485393638 has 16 divisors (see below), whose sum is σ = 7412409360. Its totient is φ = 2018628000.

The previous prime is 4485393613. The next prime is 4485393749. The reversal of 4485393638 is 8363935844.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4485393638.

It is a congruent 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, 1007093 + ... + 1011536.

It is an arithmetic number, because the mean of its divisors is an integer number (463275585).

Almost surely, 2^4485393638 is an apocalyptic number.

4485393638 is a deficient number, since it is larger than the sum of its proper divisors (2927015722).

4485393638 is a wasteful number, since it uses less digits than its factorization.

4485393638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018743.

The product of its digits is 7464960, while the sum is 53.

The square root of 4485393638 is about 66973.0814432187. The cubic root of 4485393638 is about 1649.1754236825.

The spelling of 4485393638 in words is "four billion, four hundred eighty-five million, three hundred ninety-three thousand, six hundred thirty-eight".