20256112 has 20 divisors (see below), whose sum is σ = 41555376. Its totient is φ = 9532160.

The previous prime is 20256073. The next prime is 20256127. The reversal of 20256112 is 21165202.

It is a self number, because there is not a number n which added to its sum of digits gives 20256112.

It is a congruent number.

It is an unprimeable number.

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, 36964 + ... + 37507.

Almost surely, 2^20256112 is an apocalyptic number.

It is an amenable number.

20256112 is an abundant number, since it is smaller than the sum of its proper divisors (21299264).

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

20256112 is a wasteful number, since it uses less digits than its factorization.

20256112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74496 (or 74490 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20256112 is about 4500.6790598753. The cubic root of 20256112 is about 272.5955089837.

The spelling of 20256112 in words is "twenty million, two hundred fifty-six thousand, one hundred twelve".