20332983 has 16 divisors (see below), whose sum is σ = 31132800. Its totient is φ = 11674080.

The previous prime is 20332981. The next prime is 20333009. The reversal of 20332983 is 38923302.

It is not a de Polignac number, because 20332983 - 2¹ = 20332981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20332983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332981) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15588 + ... + 16841.

It is an arithmetic number, because the mean of its divisors is an integer number (1945800).

Almost surely, 2^20332983 is an apocalyptic number.

20332983 is a deficient number, since it is larger than the sum of its proper divisors (10799817).

20332983 is a wasteful number, since it uses less digits than its factorization.

20332983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32462.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20332983 is about 4509.2109065778. The cubic root of 20332983 is about 272.9399027772.

The spelling of 20332983 in words is "twenty million, three hundred thirty-two thousand, nine hundred eighty-three".