4381582538 has 16 divisors (see below), whose sum is σ = 6642941760. Its totient is φ = 2167287936.

The previous prime is 4381582523. The next prime is 4381582561. The reversal of 4381582538 is 8352851834.

It is a junction number, because it is equal to n+sod(n) for n = 4381582492 and 4381582501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823595 + ... + 828897.

It is an arithmetic number, because the mean of its divisors is an integer number (415183860).

Almost surely, 2^4381582538 is an apocalyptic number.

4381582538 is a deficient number, since it is larger than the sum of its proper divisors (2261359222).

4381582538 is a wasteful number, since it uses less digits than its factorization.

4381582538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9661.

The product of its digits is 921600, while the sum is 47.

The square root of 4381582538 is about 66193.5233840895. The cubic root of 4381582538 is about 1636.3530076075.

The spelling of 4381582538 in words is "four billion, three hundred eighty-one million, five hundred eighty-two thousand, five hundred thirty-eight".