20382943 has 8 divisors (see below), whose sum is σ = 23362560. Its totient is φ = 17420280.

The previous prime is 20382919. The next prime is 20382959. The reversal of 20382943 is 34928302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20382943 - 2²¹ = 18285791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20382743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543 + ... + 6568.

It is an arithmetic number, because the mean of its divisors is an integer number (2920320).

Almost surely, 2^20382943 is an apocalyptic number.

20382943 is a deficient number, since it is larger than the sum of its proper divisors (2979617).

20382943 is an equidigital number, since it uses as much as digits as its factorization.

20382943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8477.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 20382943 is about 4514.7472797489. The cubic root of 20382943 is about 273.1632660421.

The spelling of 20382943 in words is "twenty million, three hundred eighty-two thousand, nine hundred forty-three".