202432401220 has 24 divisors (see below), whose sum is σ = 485837763264. Its totient is φ = 69405394656.

The previous prime is 202432401217. The next prime is 202432401221. The reversal of 202432401220 is 22104234202.

202432401220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 202432401191 and 202432401200.

It is not an unprimeable number, because it can be changed into a prime (202432401221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722972722 + ... + 722973001.

It is an arithmetic number, because the mean of its divisors is an integer number (20243240136).

Almost surely, 2^202432401220 is an apocalyptic number.

202432401220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202432401220 is an abundant number, since it is smaller than the sum of its proper divisors (283405362044).

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

202432401220 is a wasteful number, since it uses less digits than its factorization.

202432401220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445945739 (or 1445945737 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 202432401220 its reverse (22104234202), we get a palindrome (224536635422).

The spelling of 202432401220 in words is "two hundred two billion, four hundred thirty-two million, four hundred one thousand, two hundred twenty".