20806082 has 8 divisors (see below), whose sum is σ = 34046352. Its totient is φ = 9457300.

The previous prime is 20806081. The next prime is 20806091. The reversal of 20806082 is 28060802.

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

It is not an unprimeable number, because it can be changed into a prime (20806081) 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, 472844 + ... + 472887.

It is an arithmetic number, because the mean of its divisors is an integer number (4255794).

Almost surely, 2^20806082 is an apocalyptic number.

20806082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20806082 is a deficient number, since it is larger than the sum of its proper divisors (13240270).

20806082 is a wasteful number, since it uses less digits than its factorization.

20806082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945744.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 20806082 is about 4561.3684350204. The cubic root of 20806082 is about 275.0405758310.

Adding to 20806082 its reverse (28060802), we get a palindrome (48866884).

The spelling of 20806082 in words is "twenty million, eight hundred six thousand, eighty-two".