32020450040 has 32 divisors (see below), whose sum is σ = 75178450080. Its totient is φ = 12251302272.

The previous prime is 32020450031. The next prime is 32020450043. The reversal of 32020450040 is 4005402023.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 32020449994 and 32020450021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32020450043) 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, 17401499 + ... + 17403338.

It is an arithmetic number, because the mean of its divisors is an integer number (2349326565).

Almost surely, 2^32020450040 is an apocalyptic number.

It is an amenable number.

32020450040 is an abundant number, since it is smaller than the sum of its proper divisors (43158000040).

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

32020450040 is a wasteful number, since it uses less digits than its factorization.

32020450040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34804871 (or 34804867 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 32020450040 its reverse (4005402023), we get a palindrome (36025852063).

The spelling of 32020450040 in words is "thirty-two billion, twenty million, four hundred fifty thousand, forty".