20528832 has 28 divisors (see below), whose sum is σ = 54316376. Its totient is φ = 6842880.

The previous prime is 20528819. The next prime is 20528863. The reversal of 20528832 is 23882502.

It is a self number, because there is not a number n which added to its sum of digits gives 20528832.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53269 + ... + 53652.

Almost surely, 2^20528832 is an apocalyptic number.

It is an amenable number.

20528832 is an abundant number, since it is smaller than the sum of its proper divisors (33787544).

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

20528832 is a wasteful number, since it uses less digits than its factorization.

20528832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106936 (or 106926 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 20528832 is about 4530.8754121031. The cubic root of 20528832 is about 273.8134308091.

The spelling of 20528832 in words is "twenty million, five hundred twenty-eight thousand, eight hundred thirty-two".