20684124 has 36 divisors (see below), whose sum is σ = 53147640. Its totient is φ = 6780960.

The previous prime is 20684117. The next prime is 20684143. The reversal of 20684124 is 42148602.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2514 + ... + 6905.

Almost surely, 2^20684124 is an apocalyptic number.

It is an amenable number.

20684124 is an abundant number, since it is smaller than the sum of its proper divisors (32463516).

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

20684124 is a wasteful number, since it uses less digits than its factorization.

20684124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9490 (or 9485 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 20684124 is about 4547.9802110387. The cubic root of 20684124 is about 274.5021250594.

The spelling of 20684124 in words is "twenty million, six hundred eighty-four thousand, one hundred twenty-four".