220442020040 has 32 divisors (see below), whose sum is σ = 541084959360. Its totient is φ = 80160734400.

The previous prime is 220442020037. The next prime is 220442020063. The reversal of 220442020040 is 40020244022.

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 = 220442019994 and 220442020021.

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, 250501856 + ... + 250502735.

It is an arithmetic number, because the mean of its divisors is an integer number (16908904980).

Almost surely, 2^220442020040 is an apocalyptic number.

220442020040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220442020040 is an abundant number, since it is smaller than the sum of its proper divisors (320642939320).

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

220442020040 is a wasteful number, since it uses less digits than its factorization.

220442020040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501004613 (or 501004609 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 220442020040 its reverse (40020244022), we get a palindrome (260462264062).

The spelling of 220442020040 in words is "two hundred twenty billion, four hundred forty-two million, twenty thousand, forty".