20440034112 has 56 divisors (see below), whose sum is σ = 54888136096. Its totient is φ = 6711648768.

The previous prime is 20440034077. The next prime is 20440034119. The reversal of 20440034112 is 21143004402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440034119) 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, 781603 + ... + 807330.

Almost surely, 2^20440034112 is an apocalyptic number.

It is an amenable number.

20440034112 is an abundant number, since it is smaller than the sum of its proper divisors (34448101984).

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

20440034112 is a wasteful number, since it uses less digits than its factorization.

20440034112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589015 (or 1589005 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20440034112 its reverse (21143004402), we get a palindrome (41583038514).

The spelling of 20440034112 in words is "twenty billion, four hundred forty million, thirty-four thousand, one hundred twelve".