20330832 has 20 divisors (see below), whose sum is σ = 52521440. Its totient is φ = 6776928.

The previous prime is 20330819. The next prime is 20330833. The reversal of 20330832 is 23803302.

It is a junction number, because it is equal to n+sod(n) for n = 20330799 and 20330808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330833) 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 3 ways as a sum of consecutive naturals, for example, 211732 + ... + 211827.

It is an arithmetic number, because the mean of its divisors is an integer number (2626072).

Almost surely, 2^20330832 is an apocalyptic number.

It is an amenable number.

20330832 is an abundant number, since it is smaller than the sum of its proper divisors (32190608).

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

20330832 is a wasteful number, since it uses less digits than its factorization.

20330832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423570 (or 423564 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20330832 is about 4508.9723884717. The cubic root of 20330832 is about 272.9302777846.

The spelling of 20330832 in words is "twenty million, three hundred thirty thousand, eight hundred thirty-two".