20528322 has 16 divisors (see below), whose sum is σ = 43217760. Its totient is φ = 6482592.

The previous prime is 20528311. The next prime is 20528327. The reversal of 20528322 is 22382502.

It is a junction number, because it is equal to n+sod(n) for n = 20528292 and 20528301.

It is not an unprimeable number, because it can be changed into a prime (20528327) 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, 89923 + ... + 90150.

It is an arithmetic number, because the mean of its divisors is an integer number (2701110).

Almost surely, 2^20528322 is an apocalyptic number.

20528322 is an abundant number, since it is smaller than the sum of its proper divisors (22689438).

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

20528322 is a wasteful number, since it uses less digits than its factorization.

20528322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180097.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20528322 is about 4530.8191312389. The cubic root of 20528322 is about 273.8111633314.

The spelling of 20528322 in words is "twenty million, five hundred twenty-eight thousand, three hundred twenty-two".