20330933 has 12 divisors (see below), whose sum is σ = 23940000. Its totient is φ = 17213112.

The previous prime is 20330923. The next prime is 20330941. The reversal of 20330933 is 33903302.

It is not a de Polignac number, because 20330933 - 2⁴ = 20330917 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20330899 and 20330908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1568 + ... + 6566.

It is an arithmetic number, because the mean of its divisors is an integer number (1995000).

Almost surely, 2^20330933 is an apocalyptic number.

It is an amenable number.

20330933 is a deficient number, since it is larger than the sum of its proper divisors (3609067).

20330933 is an equidigital number, since it uses as much as digits as its factorization.

20330933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5096 (or 5089 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 23.

The square root of 20330933 is about 4508.9835883489. The cubic root of 20330933 is about 272.9307297404.

The spelling of 20330933 in words is "twenty million, three hundred thirty thousand, nine hundred thirty-three".