20925232 has 40 divisors (see below), whose sum is σ = 45198000. Its totient is φ = 9326592.

The previous prime is 20925209. The next prime is 20925263. The reversal of 20925232 is 23252902.

It is a junction number, because it is equal to n+sod(n) for n = 20925197 and 20925206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3144 + ... + 7192.

It is an arithmetic number, because the mean of its divisors is an integer number (1129950).

Almost surely, 2^20925232 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 20925232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22599000).

20925232 is an abundant number, since it is smaller than the sum of its proper divisors (24272768).

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

20925232 is a wasteful number, since it uses less digits than its factorization.

20925232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093 (or 4087 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20925232 is about 4574.4105631218. The cubic root of 20925232 is about 275.5646009094.

The spelling of 20925232 in words is "twenty million, nine hundred twenty-five thousand, two hundred thirty-two".