20124104 has 96 divisors (see below), whose sum is σ = 51710400. Its totient is φ = 7217280.

The previous prime is 20124101. The next prime is 20124109. The reversal of 20124104 is 40142102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (20124101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55877 + ... + 56235.

It is an arithmetic number, because the mean of its divisors is an integer number (538650).

Almost surely, 2^20124104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20124104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25855200).

20124104 is an abundant number, since it is smaller than the sum of its proper divisors (31586296).

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

20124104 is a wasteful number, since it uses less digits than its factorization.

20124104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 20124104 is about 4485.9897458643. The cubic root of 20124104 is about 272.0020544828.

Adding to 20124104 its reverse (40142102), we get a palindrome (60266206).

It can be divided in two parts, 2012 and 4104, that added together give a palindrome (6116).

The spelling of 20124104 in words is "twenty million, one hundred twenty-four thousand, one hundred four".