20412224320 has 56 divisors (see below), whose sum is σ = 48875292648. Its totient is φ = 8119756800.

The previous prime is 20412224263. The next prime is 20412224321. The reversal of 20412224320 is 2342221402.

It can be written as a sum of positive squares in 4 ways, for example, as 917362944 + 19494861376 = 30288^2 + 139624^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20412224291 and 20412224300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412224321) 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 7 ways as a sum of consecutive naturals, for example, 118291 + ... + 234130.

It is an arithmetic number, because the mean of its divisors is an integer number (872773083).

Almost surely, 2^20412224320 is an apocalyptic number.

20412224320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20412224320 is an abundant number, since it is smaller than the sum of its proper divisors (28463068328).

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

20412224320 is a wasteful number, since it uses less digits than its factorization.

20412224320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352619 (or 352609 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20412224320 its reverse (2342221402), we get a palindrome (22754445722).

The spelling of 20412224320 in words is "twenty billion, four hundred twelve million, two hundred twenty-four thousand, three hundred twenty".