202142444441 has 24 divisors (see below), whose sum is σ = 237948508224. Its totient is φ = 171206296800.

The previous prime is 202142444417. The next prime is 202142444461. The reversal of 202142444441 is 144444241202.

It is not a de Polignac number, because 202142444441 - 2⁶ = 202142444377 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 202142444398 and 202142444407.

It is not an unprimeable number, because it can be changed into a prime (202142444461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2448746 + ... + 2529948.

It is an arithmetic number, because the mean of its divisors is an integer number (9914521176).

Almost surely, 2^202142444441 is an apocalyptic number.

It is an amenable number.

202142444441 is a deficient number, since it is larger than the sum of its proper divisors (35806063783).

202142444441 is a wasteful number, since it uses less digits than its factorization.

202142444441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81821 (or 81814 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 202142444441 its reverse (144444241202), we get a palindrome (346586685643).

The spelling of 202142444441 in words is "two hundred two billion, one hundred forty-two million, four hundred forty-four thousand, four hundred forty-one".