20812010 has 32 divisors (see below), whose sum is σ = 40061952. Its totient is φ = 7765120.

The previous prime is 20811983. The next prime is 20812013. The reversal of 20812010 is 1021802.

It is not an unprimeable number, because it can be changed into a prime (20812013) 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 15 ways as a sum of consecutive naturals, for example, 8327 + ... + 10533.

It is an arithmetic number, because the mean of its divisors is an integer number (1251936).

Almost surely, 2^20812010 is an apocalyptic number.

20812010 is a deficient number, since it is larger than the sum of its proper divisors (19249942).

20812010 is a wasteful number, since it uses less digits than its factorization.

20812010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 20812010 is about 4562.0181937384. The cubic root of 20812010 is about 275.0666945673.

Adding to 20812010 its reverse (1021802), we get a palindrome (21833812).

The spelling of 20812010 in words is "twenty million, eight hundred twelve thousand, ten".