20620006 has 16 divisors (see below), whose sum is σ = 35209728. Its totient is φ = 8965000.

The previous prime is 20620003. The next prime is 20620037. The reversal of 20620006 is 60002602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620003) 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, 19870 + ... + 20881.

It is an arithmetic number, because the mean of its divisors is an integer number (2200608).

Almost surely, 2^20620006 is an apocalyptic number.

20620006 is a deficient number, since it is larger than the sum of its proper divisors (14589722).

20620006 is a wasteful number, since it uses less digits than its factorization.

20620006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40787.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20620006 is about 4540.9256765554. The cubic root of 20620006 is about 274.2181915934.

Adding to 20620006 its reverse (60002602), we get a palindrome (80622608).

It can be divided in two parts, 20 and 620006, that added together give a palindrome (620026).

The spelling of 20620006 in words is "twenty million, six hundred twenty thousand, six".