4072528 has 40 divisors (see below), whose sum is σ = 8347680. Its totient is φ = 1921920.

The previous prime is 4072513. The next prime is 4072531. The reversal of 4072528 is 8252704.

It is a junction number, because it is equal to n+sod(n) for n = 4072496 and 4072505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31023 + ... + 31153.

It is an arithmetic number, because the mean of its divisors is an integer number (208692).

Almost surely, 2^4072528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4072528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4173840).

4072528 is an abundant number, since it is smaller than the sum of its proper divisors (4275152).

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

4072528 is a wasteful number, since it uses less digits than its factorization.

4072528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4072528 is about 2018.0505444612. The cubic root of 4072528 is about 159.6937893428.

The spelling of 4072528 in words is "four million, seventy-two thousand, five hundred twenty-eight".