202423442144 has 192 divisors, whose sum is σ = 533687616000. Its totient is φ = 74714572800.

The previous prime is 202423442077. The next prime is 202423442149. The reversal of 202423442144 is 441244324202.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 202423442144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202423442149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2249864 + ... + 2338104.

It is an arithmetic number, because the mean of its divisors is an integer number (2779623000).

Almost surely, 2^202423442144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202423442144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266843808000).

202423442144 is an abundant number, since it is smaller than the sum of its proper divisors (331264173856).

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

202423442144 is a wasteful number, since it uses less digits than its factorization.

202423442144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88302 (or 88280 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 202423442144 its reverse (441244324202), we get a palindrome (643667766346).

The spelling of 202423442144 in words is "two hundred two billion, four hundred twenty-three million, four hundred forty-two thousand, one hundred forty-four".