20440535241232 has 20 divisors (see below), whose sum is σ = 39705345620460. Its totient is φ = 10193994435968.

The previous prime is 20440535241223. The next prime is 20440535241241. The reversal of 20440535241232 is 23214253504402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20440535241223) and next prime (20440535241241).

It can be written as a sum of positive squares in 2 ways, for example, as 3652700729616 + 16787834511616 = 1911204^2 + 4097296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20440535241191 and 20440535241200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642067623 + ... + 1642080070.

It is an arithmetic number, because the mean of its divisors is an integer number (1985267281023).

Almost surely, 2^{20440535241232} is an apocalyptic number.

It is an amenable number.

20440535241232 is a deficient number, since it is larger than the sum of its proper divisors (19264810379228).

20440535241232 is a wasteful number, since it uses less digits than its factorization.

20440535241232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284148090 (or 3284148084 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 20440535241232 its reverse (23214253504402), we get a palindrome (43654788745634).

The spelling of 20440535241232 in words is "twenty trillion, four hundred forty billion, five hundred thirty-five million, two hundred forty-one thousand, two hundred thirty-two".