4128438 has 8 divisors (see below), whose sum is σ = 8256888. Its totient is φ = 1376144.

The previous prime is 4128427. The next prime is 4128451. The reversal of 4128438 is 8348214.

It is a sphenic number, since it is the product of 3 distinct primes.

4128438 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 344031 + ... + 344042.

It is an arithmetic number, because the mean of its divisors is an integer number (1032111).

Almost surely, 2^4128438 is an apocalyptic number.

4128438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4128438 is a wasteful number, since it uses less digits than its factorization.

4128438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688078.

The product of its digits is 6144, while the sum is 30.

The square root of 4128438 is about 2031.8558019702. The cubic root of 4128438 is about 160.4212596950.

The spelling of 4128438 in words is "four million, one hundred twenty-eight thousand, four hundred thirty-eight".