20132444442 has 64 divisors (see below), whose sum is σ = 44441768448. Its totient is φ = 6029400000.

The previous prime is 20132444419. The next prime is 20132444443. The reversal of 20132444442 is 24444423102.

It is not an unprimeable number, because it can be changed into a prime (20132444443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2165508 + ... + 2174784.

It is an arithmetic number, because the mean of its divisors is an integer number (694402632).

Almost surely, 2^20132444442 is an apocalyptic number.

20132444442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20132444442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22220884224).

20132444442 is an abundant number, since it is smaller than the sum of its proper divisors (24309324006).

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

20132444442 is a wasteful number, since it uses less digits than its factorization.

20132444442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9675.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 20132444442 its reverse (24444423102), we get a palindrome (44576867544).

The spelling of 20132444442 in words is "twenty billion, one hundred thirty-two million, four hundred forty-four thousand, four hundred forty-two".