202042052452 has 12 divisors (see below), whose sum is σ = 354146648940. Its totient is φ = 100857295616.

The previous prime is 202042052447. The next prime is 202042052479. The reversal of 202042052452 is 254250240202.

It can be written as a sum of positive squares in 2 ways, for example, as 82819630656 + 119222421796 = 287784^2 + 345286^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202042052452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40929877 + ... + 40934812.

It is an arithmetic number, because the mean of its divisors is an integer number (29512220745).

Almost surely, 2^202042052452 is an apocalyptic number.

It is an amenable number.

202042052452 is a deficient number, since it is larger than the sum of its proper divisors (152104596488).

202042052452 is a wasteful number, since it uses less digits than its factorization.

202042052452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81865310 (or 81865308 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 202042052452 its reverse (254250240202), we get a palindrome (456292292654).

The spelling of 202042052452 in words is "two hundred two billion, forty-two million, fifty-two thousand, four hundred fifty-two".