202203344420 has 144 divisors (see below), whose sum is σ = 534026962560. Its totient is φ = 62952215040.

The previous prime is 202203344363. The next prime is 202203344423. The reversal of 202203344420 is 24443302202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 202203344420.

It is not an unprimeable number, because it can be changed into a prime (202203344423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15866411 + ... + 15879149.

Almost surely, 2^202203344420 is an apocalyptic number.

202203344420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202203344420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267013481280).

202203344420 is an abundant number, since it is smaller than the sum of its proper divisors (331823618140).

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

202203344420 is a wasteful number, since it uses less digits than its factorization.

202203344420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13714 (or 13701 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 202203344420 its reverse (24443302202), we get a palindrome (226646646622).

The spelling of 202203344420 in words is "two hundred two billion, two hundred three million, three hundred forty-four thousand, four hundred twenty".