203421452 has 24 divisors (see below), whose sum is σ = 391532736. Its totient is φ = 91888128.

The previous prime is 203421451. The next prime is 203421481. The reversal of 203421452 is 254124302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (203421451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39173 + ... + 44060.

It is an arithmetic number, because the mean of its divisors is an integer number (16313864).

Almost surely, 2^203421452 is an apocalyptic number.

It is an amenable number.

203421452 is a deficient number, since it is larger than the sum of its proper divisors (188111284).

203421452 is a wasteful number, since it uses less digits than its factorization.

203421452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83297 (or 83295 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 203421452 is about 14262.5892459960. The cubic root of 203421452 is about 588.1195053813.

Adding to 203421452 its reverse (254124302), we get a palindrome (457545754).

The spelling of 203421452 in words is "two hundred three million, four hundred twenty-one thousand, four hundred fifty-two".