20927232 has 108 divisors (see below), whose sum is σ = 62497344. Its totient is φ = 6727680.

The previous prime is 20927147. The next prime is 20927233. The reversal of 20927232 is 23272902.

It is a junction number, because it is equal to n+sod(n) for n = 20927196 and 20927205.

It is not an unprimeable number, because it can be changed into a prime (20927233) 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 11 ways as a sum of consecutive naturals, for example, 71278 + ... + 71570.

Almost surely, 2^20927232 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 20927232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31248672).

20927232 is an abundant number, since it is smaller than the sum of its proper divisors (41570112).

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

20927232 is a wasteful number, since it uses less digits than its factorization.

20927232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 20927232 is about 4574.6291652985. The cubic root of 20927232 is about 275.5733799701.

The spelling of 20927232 in words is "twenty million, nine hundred twenty-seven thousand, two hundred thirty-two".