20528032 has 48 divisors (see below), whose sum is σ = 46654272. Its totient is φ = 8709120.

The previous prime is 20528023. The next prime is 20528033. The reversal of 20528032 is 23082502.

It is a junction number, because it is equal to n+sod(n) for n = 20527994 and 20528012.

It is not an unprimeable number, because it can be changed into a prime (20528033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24907 + ... + 25717.

It is an arithmetic number, because the mean of its divisors is an integer number (971964).

Almost surely, 2^20528032 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 20528032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23327136).

20528032 is an abundant number, since it is smaller than the sum of its proper divisors (26126240).

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

20528032 is a wasteful number, since it uses less digits than its factorization.

20528032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20528032 is about 4530.7871280827. The cubic root of 20528032 is about 273.8098739646.

The spelling of 20528032 in words is "twenty million, five hundred twenty-eight thousand, thirty-two".