20440444024 has 64 divisors (see below), whose sum is σ = 51458480640. Its totient is φ = 7351205760.

The previous prime is 20440444007. The next prime is 20440444033. The reversal of 20440444024 is 42044404402.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 20440443983 and 20440444001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1268244 + ... + 1284259.

It is an arithmetic number, because the mean of its divisors is an integer number (804038760).

Almost surely, 2^20440444024 is an apocalyptic number.

It is an amenable number.

20440444024 is an abundant number, since it is smaller than the sum of its proper divisors (31018036616).

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

20440444024 is a wasteful number, since it uses less digits than its factorization.

20440444024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552540 (or 2552536 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20440444024 its reverse (42044404402), we get a palindrome (62484848426).

It can be divided in two parts, 20440 and 444024, that added together give a palindrome (464464).

The spelling of 20440444024 in words is "twenty billion, four hundred forty million, four hundred forty-four thousand, twenty-four".