20413332224 has 72 divisors (see below), whose sum is σ = 41399069712. Its totient is φ = 10043965440.

The previous prime is 20413332223. The next prime is 20413332227. The reversal of 20413332224 is 42223331402.

It is a junction number, because it is equal to n+sod(n) for n = 20413332193 and 20413332202.

It is not an unprimeable number, because it can be changed into a prime (20413332223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10669892 + ... + 10671804.

Almost surely, 2^20413332224 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 20413332224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20699534856).

20413332224 is an abundant number, since it is smaller than the sum of its proper divisors (20985737488).

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

20413332224 is an equidigital number, since it uses as much as digits as its factorization.

20413332224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573 (or 2559 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20413332224 its reverse (42223331402), we get a palindrome (62636663626).

The spelling of 20413332224 in words is "twenty billion, four hundred thirteen million, three hundred thirty-two thousand, two hundred twenty-four".