20442322004 has 24 divisors (see below), whose sum is σ = 38721496968. Its totient is φ = 9387020160.

The previous prime is 20442322001. The next prime is 20442322049. The reversal of 20442322004 is 40022324402.

It can be written as a sum of positive squares in 4 ways, for example, as 2662766404 + 17779555600 = 51602^2 + 133340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442322001) 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, 987527 + ... + 1008014.

It is an arithmetic number, because the mean of its divisors is an integer number (1613395707).

Almost surely, 2^20442322004 is an apocalyptic number.

It is an amenable number.

20442322004 is a deficient number, since it is larger than the sum of its proper divisors (18279174964).

20442322004 is a wasteful number, since it uses less digits than its factorization.

20442322004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995755 (or 1995753 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 20442322004 its reverse (40022324402), we get a palindrome (60464646406).

The spelling of 20442322004 in words is "twenty billion, four hundred forty-two million, three hundred twenty-two thousand, four".