20329383 has 4 divisors (see below), whose sum is σ = 27105848. Its totient is φ = 13552920.

The previous prime is 20329363. The next prime is 20329417. The reversal of 20329383 is 38392302.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20329383 - 2¹⁸ = 20067239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20329383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20329303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3388228 + ... + 3388233.

It is an arithmetic number, because the mean of its divisors is an integer number (6776462).

Almost surely, 2^20329383 is an apocalyptic number.

20329383 is a deficient number, since it is larger than the sum of its proper divisors (6776465).

20329383 is an equidigital number, since it uses as much as digits as its factorization.

20329383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6776464.

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

The square root of 20329383 is about 4508.8117059820. The cubic root of 20329383 is about 272.9237936203.

The spelling of 20329383 in words is "twenty million, three hundred twenty-nine thousand, three hundred eighty-three".