20576032 has 48 divisors (see below), whose sum is σ = 41997312. Its totient is φ = 9918720.

The previous prime is 20576029. The next prime is 20576041. The reversal of 20576032 is 23067502.

It is a junction number, because it is equal to n+sod(n) for n = 20575988 and 20576006.

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, 161953 + ... + 162079.

It is an arithmetic number, because the mean of its divisors is an integer number (874944).

Almost surely, 2^20576032 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 20576032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20998656).

20576032 is an abundant number, since it is smaller than the sum of its proper divisors (21421280).

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

20576032 is a wasteful number, since it uses less digits than its factorization.

20576032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 20576032 is about 4536.0811280223. The cubic root of 20576032 is about 274.0231212840.

The spelling of 20576032 in words is "twenty million, five hundred seventy-six thousand, thirty-two".