20132444020 has 48 divisors (see below), whose sum is σ = 46640816208. Its totient is φ = 7252208640.

The previous prime is 20132443999. The next prime is 20132444051. The reversal of 20132444020 is 2044423102.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3368409444 + 16764034576 = 58038^2 + 129476^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20132443982 and 20132444000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 933639 + ... + 954958.

It is an arithmetic number, because the mean of its divisors is an integer number (971683671).

Almost surely, 2^20132444020 is an apocalyptic number.

20132444020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20132444020 is an abundant number, since it is smaller than the sum of its proper divisors (26508372188).

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

20132444020 is a wasteful number, since it uses less digits than its factorization.

20132444020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888660 (or 1888658 counting only the distinct ones).

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

Adding to 20132444020 its reverse (2044423102), we get a palindrome (22176867122).

The spelling of 20132444020 in words is "twenty billion, one hundred thirty-two million, four hundred forty-four thousand, twenty".