20440202032 has 20 divisors (see below), whose sum is σ = 39666889480. Its totient is φ = 10203585408.

The previous prime is 20440202023. The next prime is 20440202039. The reversal of 20440202032 is 23020204402.

It is not an unprimeable number, because it can be changed into a prime (20440202039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022013 + ... + 1041820.

It is an arithmetic number, because the mean of its divisors is an integer number (1983344474).

Almost surely, 2^20440202032 is an apocalyptic number.

It is an amenable number.

20440202032 is a deficient number, since it is larger than the sum of its proper divisors (19226687448).

20440202032 is a wasteful number, since it uses less digits than its factorization.

20440202032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064460 (or 2064454 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 20440202032 its reverse (23020204402), we get a palindrome (43460406434).

The spelling of 20440202032 in words is "twenty billion, four hundred forty million, two hundred two thousand, thirty-two".