4128028 has 6 divisors (see below), whose sum is σ = 7224056. Its totient is φ = 2064012.

The previous prime is 4128023. The next prime is 4128031. The reversal of 4128028 is 8208214.

It is a junction number, because it is equal to n+sod(n) for n = 4127993 and 4128011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516000 + ... + 516007.

Almost surely, 2^4128028 is an apocalyptic number.

It is an amenable number.

4128028 is a deficient number, since it is larger than the sum of its proper divisors (3096028).

4128028 is a wasteful number, since it uses less digits than its factorization.

4128028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032011 (or 1032009 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 4128028 is about 2031.7549064786. The cubic root of 4128028 is about 160.4159489783.

The spelling of 4128028 in words is "four million, one hundred twenty-eight thousand, twenty-eight".