20256124 has 24 divisors (see below), whose sum is σ = 40890080. Its totient is φ = 8600256.

The previous prime is 20256073. The next prime is 20256127. The reversal of 20256124 is 42165202.

It is a junction number, because it is equal to n+sod(n) for n = 20256095 and 20256104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20256127) 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 7 ways as a sum of consecutive naturals, for example, 267 + ... + 6370.

Almost surely, 2^20256124 is an apocalyptic number.

It is an amenable number.

20256124 is an abundant number, since it is smaller than the sum of its proper divisors (20633956).

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

20256124 is a wasteful number, since it uses less digits than its factorization.

20256124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6757 (or 6755 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20256124 is about 4500.6803930073. The cubic root of 20256124 is about 272.5955628135.

The spelling of 20256124 in words is "twenty million, two hundred fifty-six thousand, one hundred twenty-four".