20662382 has 16 divisors (see below), whose sum is σ = 33497520. Its totient is φ = 9502272.

The previous prime is 20662381. The next prime is 20662393. The reversal of 20662382 is 28326602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20662381) 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 in 7 ways as a sum of consecutive naturals, for example, 6869 + ... + 9407.

It is an arithmetic number, because the mean of its divisors is an integer number (2093595).

Almost surely, 2^20662382 is an apocalyptic number.

20662382 is a deficient number, since it is larger than the sum of its proper divisors (12835138).

20662382 is a wasteful number, since it uses less digits than its factorization.

20662382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 20662382 is about 4545.5892907301. The cubic root of 20662382 is about 274.4059108876.

Adding to 20662382 its reverse (28326602), we get a palindrome (48988984).

The spelling of 20662382 in words is "twenty million, six hundred sixty-two thousand, three hundred eighty-two".