32440220013 has 4 divisors (see below), whose sum is σ = 43253626688. Its totient is φ = 21626813340.

The previous prime is 32440219991. The next prime is 32440220047. The reversal of 32440220013 is 31002204423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 32440220013 - 2⁶ = 32440219949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32440220053) 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, 5406703333 + ... + 5406703338.

It is an arithmetic number, because the mean of its divisors is an integer number (10813406672).

Almost surely, 2^32440220013 is an apocalyptic number.

It is an amenable number.

32440220013 is a deficient number, since it is larger than the sum of its proper divisors (10813406675).

32440220013 is a wasteful number, since it uses less digits than its factorization.

32440220013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10813406674.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 32440220013 its reverse (31002204423), we get a palindrome (63442424436).

The spelling of 32440220013 in words is "thirty-two billion, four hundred forty million, two hundred twenty thousand, thirteen".