202132443440 has 20 divisors (see below), whose sum is σ = 469957931184. Its totient is φ = 80852977344.

The previous prime is 202132443439. The next prime is 202132443449. The reversal of 202132443440 is 44344231202.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (202132443449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263327692 + ... + 1263327851.

Almost surely, 2^202132443440 is an apocalyptic number.

202132443440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202132443440 is an abundant number, since it is smaller than the sum of its proper divisors (267825487744).

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

202132443440 is a wasteful number, since it uses less digits than its factorization.

202132443440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526655556 (or 2526655550 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 202132443440 its reverse (44344231202), we get a palindrome (246476674642).

The spelling of 202132443440 in words is "two hundred two billion, one hundred thirty-two million, four hundred forty-three thousand, four hundred forty".