220242240440 has 32 divisors (see below), whose sum is σ = 495563687280. Its totient is φ = 88093581312.

The previous prime is 220242240373. The next prime is 220242240443. The reversal of 220242240440 is 44042242022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220242240443) 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, 1164344 + ... + 1340216.

Almost surely, 2^220242240440 is an apocalyptic number.

220242240440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220242240440 is an abundant number, since it is smaller than the sum of its proper divisors (275321446840).

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

220242240440 is a wasteful number, since it uses less digits than its factorization.

220242240440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207191 (or 207187 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 220242240440 its reverse (44042242022), we get a palindrome (264284482462).

The spelling of 220242240440 in words is "two hundred twenty billion, two hundred forty-two million, two hundred forty thousand, four hundred forty".