20040124 has 24 divisors (see below), whose sum is σ = 37996560. Its totient is φ = 9193344.

The previous prime is 20040071. The next prime is 20040133. The reversal of 20040124 is 42104002.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8232 + ... + 10384.

It is an arithmetic number, because the mean of its divisors is an integer number (1583190).

Almost surely, 2^20040124 is an apocalyptic number.

It is an amenable number.

20040124 is a deficient number, since it is larger than the sum of its proper divisors (17956436).

20040124 is a wasteful number, since it uses less digits than its factorization.

20040124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349 (or 2347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20040124 is about 4476.6197068771. The cubic root of 20040124 is about 271.6231625588.

Adding to 20040124 its reverse (42104002), we get a palindrome (62144126).

It can be divided in two parts, 20040 and 124, that added together give a square (20164 = 142²).

The spelling of 20040124 in words is "twenty million, forty thousand, one hundred twenty-four".