20134420224 has 144 divisors (see below), whose sum is σ = 54334425600. Its totient is φ = 6618451968.

The previous prime is 20134420219. The next prime is 20134420231. The reversal of 20134420224 is 42202443102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20134420194 and 20134420203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28397982 + ... + 28398690.

It is an arithmetic number, because the mean of its divisors is an integer number (377322400).

Almost surely, 2^20134420224 is an apocalyptic number.

20134420224 is a gapful number since it is divisible by the number (24) 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 20134420224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27167212800).

20134420224 is an abundant number, since it is smaller than the sum of its proper divisors (34200005376).

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

20134420224 is a wasteful number, since it uses less digits than its factorization.

20134420224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20134420224 its reverse (42202443102), we get a palindrome (62336863326).

The spelling of 20134420224 in words is "twenty billion, one hundred thirty-four million, four hundred twenty thousand, two hundred twenty-four".