203430398 has 8 divisors (see below), whose sum is σ = 323095392. Its totient is φ = 95731936.

The previous prime is 203430379. The next prime is 203430413. The reversal of 203430398 is 893034302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2991590 + ... + 2991657.

It is an arithmetic number, because the mean of its divisors is an integer number (40386924).

Almost surely, 2^203430398 is an apocalyptic number.

203430398 is a deficient number, since it is larger than the sum of its proper divisors (119664994).

203430398 is a wasteful number, since it uses less digits than its factorization.

203430398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983266.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 203430398 is about 14262.9028602175. The cubic root of 203430398 is about 588.1281266287.

The spelling of 203430398 in words is "two hundred three million, four hundred thirty thousand, three hundred ninety-eight".