4381928438 has 4 divisors (see below), whose sum is σ = 6572892660. Its totient is φ = 2190964218.

The previous prime is 4381928437. The next prime is 4381928443. The reversal of 4381928438 is 8348291834.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4381928437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095482108 + ... + 1095482111.

It is an arithmetic number, because the mean of its divisors is an integer number (1643223165).

Almost surely, 2^4381928438 is an apocalyptic number.

4381928438 is a deficient number, since it is larger than the sum of its proper divisors (2190964222).

4381928438 is a wasteful number, since it uses less digits than its factorization.

4381928438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190964221.

The product of its digits is 1327104, while the sum is 50.

The square root of 4381928438 is about 66196.1361259099. The cubic root of 4381928438 is about 1636.3960666018.

The spelling of 4381928438 in words is "four billion, three hundred eighty-one million, nine hundred twenty-eight thousand, four hundred thirty-eight".