20268812 has 12 divisors (see below), whose sum is σ = 35511840. Its totient is φ = 10122576.

The previous prime is 20268799. The next prime is 20268817. The reversal of 20268812 is 21886202.

It is not an unprimeable number, because it can be changed into a prime (20268817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1718 + ... + 6594.

It is an arithmetic number, because the mean of its divisors is an integer number (2959320).

Almost surely, 2^20268812 is an apocalyptic number.

It is an amenable number.

20268812 is a deficient number, since it is larger than the sum of its proper divisors (15243028).

20268812 is a wasteful number, since it uses less digits than its factorization.

20268812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920 (or 5918 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 20268812 is about 4502.0897369999. The cubic root of 20268812 is about 272.6524669314.

The spelling of 20268812 in words is "twenty million, two hundred sixty-eight thousand, eight hundred twelve".