32220420140 has 24 divisors (see below), whose sum is σ = 67669212240. Its totient is φ = 12886962368.

The previous prime is 32220420137. The next prime is 32220420157. The reversal of 32220420140 is 4102402223.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162014 + ... + 301146.

It is an arithmetic number, because the mean of its divisors is an integer number (2819550510).

Almost surely, 2^32220420140 is an apocalyptic number.

It is an amenable number.

32220420140 is an abundant number, since it is smaller than the sum of its proper divisors (35448792100).

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

32220420140 is a wasteful number, since it uses less digits than its factorization.

32220420140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150721 (or 150719 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 32220420140 its reverse (4102402223), we get a palindrome (36322822363).

The spelling of 32220420140 in words is "thirty-two billion, two hundred twenty million, four hundred twenty thousand, one hundred forty".