20124030 has 32 divisors (see below), whose sum is σ = 49478688. Its totient is φ = 5235200.

The previous prime is 20124023. The next prime is 20124031. The reversal of 20124030 is 3042102.

It is a junction number, because it is equal to n+sod(n) for n = 20123997 and 20124015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124031) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6951 + ... + 9410.

It is an arithmetic number, because the mean of its divisors is an integer number (1546209).

Almost surely, 2^20124030 is an apocalyptic number.

20124030 is an abundant number, since it is smaller than the sum of its proper divisors (29354658).

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

20124030 is a wasteful number, since it uses less digits than its factorization.

20124030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16412.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20124030 is about 4485.9814979556. The cubic root of 20124030 is about 272.0017210820.

Adding to 20124030 its reverse (3042102), we get a palindrome (23166132).

The spelling of 20124030 in words is "twenty million, one hundred twenty-four thousand, thirty".