20266012 has 48 divisors (see below), whose sum is σ = 40219200. Its totient is φ = 8870400.

The previous prime is 20266007. The next prime is 20266039. The reversal of 20266012 is 21066202.

It is a super-2 number, since 2×20266012² = 821422484768288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134137 + ... + 134287.

It is an arithmetic number, because the mean of its divisors is an integer number (837900).

Almost surely, 2^20266012 is an apocalyptic number.

It is an amenable number.

20266012 is a deficient number, since it is larger than the sum of its proper divisors (19953188).

20266012 is a wasteful number, since it uses less digits than its factorization.

20266012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20266012 is about 4501.7787595572. The cubic root of 20266012 is about 272.6399113186.

The spelling of 20266012 in words is "twenty million, two hundred sixty-six thousand, twelve".