4128528 has 20 divisors (see below), whose sum is σ = 10665488. Its totient is φ = 1376160.

The previous prime is 4128521. The next prime is 4128533. The reversal of 4128528 is 8258214.

It is a junction number, because it is equal to n+sod(n) for n = 4128495 and 4128504.

It is not an unprimeable number, because it can be changed into a prime (4128521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42958 + ... + 43053.

Almost surely, 2^4128528 is an apocalyptic number.

4128528 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4128528 is an abundant number, since it is smaller than the sum of its proper divisors (6536960).

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

4128528 is a wasteful number, since it uses less digits than its factorization.

4128528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86022 (or 86016 counting only the distinct ones).

The product of its digits is 5120, while the sum is 30.

The square root of 4128528 is about 2031.8779490904. The cubic root of 4128528 is about 160.4224254150.

It can be divided in two parts, 4128 and 528, that added together give a triangular number (4656 = T₉₆).

The spelling of 4128528 in words is "four million, one hundred twenty-eight thousand, five hundred twenty-eight".