4128453938 has 24 divisors (see below), whose sum is σ = 7226509932. Its totient is φ = 1763742624.

The previous prime is 4128453937. The next prime is 4128453941. The reversal of 4128453938 is 8393548214.

4128453938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4128448009 + 5929 = 64253^2 + 77^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4128453892 and 4128453901.

It is not an unprimeable number, because it can be changed into a prime (4128453937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35381 + ... + 97512.

Almost surely, 2^4128453938 is an apocalyptic number.

4128453938 is a deficient number, since it is larger than the sum of its proper divisors (3098055994).

4128453938 is a wasteful number, since it uses less digits than its factorization.

4128453938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133226 (or 133219 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 4128453938 is about 64253.0461379070. The cubic root of 4128453938 is about 1604.2146613225.

The spelling of 4128453938 in words is "four billion, one hundred twenty-eight million, four hundred fifty-three thousand, nine hundred thirty-eight".