203430324 has 48 divisors (see below), whose sum is σ = 485352000. Its totient is φ = 66293760.

The previous prime is 203430319. The next prime is 203430379. The reversal of 203430324 is 423034302.

It is a self number, because there is not a number n which added to its sum of digits gives 203430324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317044 + ... + 317684.

It is an arithmetic number, because the mean of its divisors is an integer number (10111500).

Almost surely, 2^203430324 is an apocalyptic number.

It is an amenable number.

203430324 is an abundant number, since it is smaller than the sum of its proper divisors (281921676).

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

203430324 is a wasteful number, since it uses less digits than its factorization.

203430324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 203430324 is about 14262.9002660749. The cubic root of 203430324 is about 588.1280553160.

Adding to 203430324 its reverse (423034302), we get a palindrome (626464626).

The spelling of 203430324 in words is "two hundred three million, four hundred thirty thousand, three hundred twenty-four".