20436124000 has 96 divisors (see below), whose sum is σ = 50513875776. Its totient is φ = 8125235200.

The previous prime is 20436123989. The next prime is 20436124021. The reversal of 20436124000 is 42163402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 652704 + ... + 683296.

It is an arithmetic number, because the mean of its divisors is an integer number (526186206).

Almost surely, 2^20436124000 is an apocalyptic number.

20436124000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20436124000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25256937888).

20436124000 is an abundant number, since it is smaller than the sum of its proper divisors (30077751776).

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

20436124000 is a wasteful number, since it uses less digits than its factorization.

20436124000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30785 (or 30767 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20436124000 its reverse (42163402), we get a palindrome (20478287402).

The spelling of 20436124000 in words is "twenty billion, four hundred thirty-six million, one hundred twenty-four thousand".