20124792 has 24 divisors (see below), whose sum is σ = 54504840. Its totient is φ = 6708240.

The previous prime is 20124773. The next prime is 20124799. The reversal of 20124792 is 29742102.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124799) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 139684 + ... + 139827.

It is an arithmetic number, because the mean of its divisors is an integer number (2271035).

Almost surely, 2^20124792 is an apocalyptic number.

It is an amenable number.

20124792 is an abundant number, since it is smaller than the sum of its proper divisors (34380048).

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

20124792 is a wasteful number, since it uses less digits than its factorization.

20124792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279523 (or 279516 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20124792 is about 4486.0664283980. The cubic root of 20124792 is about 272.0051541699.

Adding to 20124792 its reverse (29742102), we get a palindrome (49866894).

The spelling of 20124792 in words is "twenty million, one hundred twenty-four thousand, seven hundred ninety-two".