20154424000 has 112 divisors (see below), whose sum is σ = 50597629056. Its totient is φ = 7951104000.

The previous prime is 20154423977. The next prime is 20154424007. The reversal of 20154424000 is 42445102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20154424007) 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, 566745 + ... + 601255.

Almost surely, 2^20154424000 is an apocalyptic number.

20154424000 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 20154424000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25298814528).

20154424000 is an abundant number, since it is smaller than the sum of its proper divisors (30443205056).

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

20154424000 is an equidigital number, since it uses as much as digits as its factorization.

20154424000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34611 (or 34591 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 20154424000 its reverse (42445102), we get a palindrome (20196869102).

The spelling of 20154424000 in words is "twenty billion, one hundred fifty-four million, four hundred twenty-four thousand".