20630382 has 8 divisors (see below), whose sum is σ = 41260776. Its totient is φ = 6876792.

The previous prime is 20630359. The next prime is 20630387. The reversal of 20630382 is 28303602.

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

20630382 is an admirable number.

It is a super-2 number, since 2×20630382² = 851225322931848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20630387) 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, 1719193 + ... + 1719204.

It is an arithmetic number, because the mean of its divisors is an integer number (5157597).

Almost surely, 2^20630382 is an apocalyptic number.

20630382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20630382 is a wasteful number, since it uses less digits than its factorization.

20630382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438402.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20630382 is about 4542.0680311946. The cubic root of 20630382 is about 274.2641794694.

Adding to 20630382 its reverse (28303602), we get a palindrome (48933984).

It can be divided in two parts, 20630 and 382, that added together give a palindrome (21012).

The spelling of 20630382 in words is "twenty million, six hundred thirty thousand, three hundred eighty-two".