20144792 has 32 divisors (see below), whose sum is σ = 40348800. Its totient is φ = 9408000.

The previous prime is 20144777. The next prime is 20144797. The reversal of 20144792 is 29744102.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144797) 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 7 ways as a sum of consecutive naturals, for example, 5792 + ... + 8592.

It is an arithmetic number, because the mean of its divisors is an integer number (1260900).

Almost surely, 2^20144792 is an apocalyptic number.

It is an amenable number.

20144792 is an abundant number, since it is smaller than the sum of its proper divisors (20204008).

20144792 is a wasteful number, since it uses less digits than its factorization.

20144792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867 (or 2863 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 20144792 is about 4488.2949992174. The cubic root of 20144792 is about 272.0952304956.

Adding to 20144792 its reverse (29744102), we get a palindrome (49888894).

The spelling of 20144792 in words is "twenty million, one hundred forty-four thousand, seven hundred ninety-two".