203540452 has 24 divisors (see below), whose sum is σ = 362126520. Its totient is φ = 100089600.

The previous prime is 203540443. The next prime is 203540453. The reversal of 203540452 is 254045302.

It can be written as a sum of positive squares in 4 ways, for example, as 66977856 + 136562596 = 8184^2 + 11686^2 .

It is not an unprimeable number, because it can be changed into a prime (203540453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61824 + ... + 65032.

It is an arithmetic number, because the mean of its divisors is an integer number (15088605).

Almost surely, 2^203540452 is an apocalyptic number.

It is an amenable number.

203540452 is a deficient number, since it is larger than the sum of its proper divisors (158586068).

203540452 is a wasteful number, since it uses less digits than its factorization.

203540452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471 (or 3469 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 203540452 is about 14266.7603891003. The cubic root of 203540452 is about 588.2341648363.

Adding to 203540452 its reverse (254045302), we get a palindrome (457585754).

The spelling of 203540452 in words is "two hundred three million, five hundred forty thousand, four hundred fifty-two".