20208528 has 100 divisors (see below), whose sum is σ = 60496128. Its totient is φ = 6505920.

The previous prime is 20208527. The next prime is 20208541. The reversal of 20208528 is 82580202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20208523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39925 + ... + 40427.

Almost surely, 2^20208528 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 20208528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30248064).

20208528 is an abundant number, since it is smaller than the sum of its proper divisors (40287600).

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

20208528 is a wasteful number, since it uses less digits than its factorization.

20208528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 20208528 is about 4495.3896382850. The cubic root of 20208528 is about 272.3818886055.

It can be divided in two parts, 20208 and 528, that added together give a 4-th power (20736 = 12⁴).

The spelling of 20208528 in words is "twenty million, two hundred eight thousand, five hundred twenty-eight".