20124788 has 12 divisors (see below), whose sum is σ = 35294112. Its totient is φ = 10040760.

The previous prime is 20124773. The next prime is 20124799. The reversal of 20124788 is 88742102.

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, 3218 + ... + 7113.

It is an arithmetic number, because the mean of its divisors is an integer number (2941176).

Almost surely, 2^20124788 is an apocalyptic number.

It is an amenable number.

20124788 is a deficient number, since it is larger than the sum of its proper divisors (15169324).

20124788 is a wasteful number, since it uses less digits than its factorization.

20124788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10822 (or 10820 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 20124788 is about 4486.0659825731. The cubic root of 20124788 is about 272.0051361487.

The spelling of 20124788 in words is "twenty million, one hundred twenty-four thousand, seven hundred eighty-eight".