20000124 has 36 divisors (see below), whose sum is σ = 50712480. Its totient is φ = 6646080.

The previous prime is 20000107. The next prime is 20000147. The reversal of 20000124 is 42100002.

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

It is a Harshad number since it is a multiple of its sum of digits (9).

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 11 ways as a sum of consecutive naturals, for example, 14872 + ... + 16160.

It is an arithmetic number, because the mean of its divisors is an integer number (1408680).

Almost surely, 2^20000124 is an apocalyptic number.

It is an amenable number.

20000124 is an abundant number, since it is smaller than the sum of its proper divisors (30712356).

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

20000124 is a wasteful number, since it uses less digits than its factorization.

20000124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1725 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 20000124 is about 4472.1498185996. The cubic root of 20000124 is about 271.4423226380.

Adding to 20000124 its reverse (42100002), we get a palindrome (62100126).

The spelling of 20000124 in words is "twenty million, one hundred twenty-four", and thus it is an aban number.