20310006 has 16 divisors (see below), whose sum is σ = 41611248. Its totient is φ = 6604800.

The previous prime is 20310001. The next prime is 20310007. The reversal of 20310006 is 60001302.

It is a junction number, because it is equal to n+sod(n) for n = 20309973 and 20310000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41035 + ... + 41526.

It is an arithmetic number, because the mean of its divisors is an integer number (2600703).

Almost surely, 2^20310006 is an apocalyptic number.

20310006 is an abundant number, since it is smaller than the sum of its proper divisors (21301242).

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

20310006 is a wasteful number, since it uses less digits than its factorization.

20310006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82607.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 20310006 is about 4506.6624013787. The cubic root of 20310006 is about 272.8370534001.

Adding to 20310006 its reverse (60001302), we get a palindrome (80311308).

The spelling of 20310006 in words is "twenty million, three hundred ten thousand, six".