20226812 has 12 divisors (see below), whose sum is σ = 35463120. Its totient is φ = 10094496.

The previous prime is 20226799. The next prime is 20226823. The reversal of 20226812 is 21862202.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2168 + ... + 6719.

It is an arithmetic number, because the mean of its divisors is an integer number (2955260).

Almost surely, 2^20226812 is an apocalyptic number.

It is an amenable number.

20226812 is a deficient number, since it is larger than the sum of its proper divisors (15236308).

20226812 is a wasteful number, since it uses less digits than its factorization.

20226812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9460 (or 9458 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 20226812 is about 4497.4228175701. The cubic root of 20226812 is about 272.4640111830.

The spelling of 20226812 in words is "twenty million, two hundred twenty-six thousand, eight hundred twelve".