20005382 has 8 divisors (see below), whose sum is σ = 30819216. Its totient is φ = 9732312.

The previous prime is 20005369. The next prime is 20005393. The reversal of 20005382 is 28350002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135098 + ... + 135245.

It is an arithmetic number, because the mean of its divisors is an integer number (3852402).

Almost surely, 2^20005382 is an apocalyptic number.

20005382 is a deficient number, since it is larger than the sum of its proper divisors (10813834).

20005382 is a wasteful number, since it uses less digits than its factorization.

20005382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270382.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20005382 is about 4472.7376404167. The cubic root of 20005382 is about 271.4661078018.

Adding to 20005382 its reverse (28350002), we get a palindrome (48355384).

The spelling of 20005382 in words is "twenty million, five thousand, three hundred eighty-two".