20332919 has 2 divisors, whose sum is σ = 20332920. Its totient is φ = 20332918.

The previous prime is 20332891. The next prime is 20332951. The reversal of 20332919 is 91923302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20332919 is a prime.

It is a super-2 number, since 2×20332919² = 826855190121122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20332891 and 20332900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20332979) 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 as a sum of consecutive naturals, namely, 10166459 + 10166460.

It is an arithmetic number, because the mean of its divisors is an integer number (10166460).

Almost surely, 2^20332919 is an apocalyptic number.

20332919 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332919 is an equidigital number, since it uses as much as digits as its factorization.

20332919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 20332919 is about 4509.2038099869. The cubic root of 20332919 is about 272.9396164088.

The spelling of 20332919 in words is "twenty million, three hundred thirty-two thousand, nine hundred nineteen".