20528124 has 12 divisors (see below), whose sum is σ = 47898984. Its totient is φ = 6842704.

The previous prime is 20528087. The next prime is 20528171. The reversal of 20528124 is 42182502.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20528094 and 20528103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855327 + ... + 855350.

It is an arithmetic number, because the mean of its divisors is an integer number (3991582).

Almost surely, 2^20528124 is an apocalyptic number.

It is an amenable number.

20528124 is an abundant number, since it is smaller than the sum of its proper divisors (27370860).

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

20528124 is a wasteful number, since it uses less digits than its factorization.

20528124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710684 (or 1710682 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 20528124 is about 4530.7972808326. The cubic root of 20528124 is about 273.8102830064.

The spelling of 20528124 in words is "twenty million, five hundred twenty-eight thousand, one hundred twenty-four".