163430399 has 8 divisors (see below), whose sum is σ = 184435920. Its totient is φ = 143449600.

The previous prime is 163430389. The next prime is 163430417. The reversal of 163430399 is 993034361.

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

It is a cyclic number.

It is not a de Polignac number, because 163430399 - 2¹² = 163426303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163430339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255842 + ... + 256479.

It is an arithmetic number, because the mean of its divisors is an integer number (23054490).

Almost surely, 2^163430399 is an apocalyptic number.

163430399 is a deficient number, since it is larger than the sum of its proper divisors (21005521).

163430399 is a wasteful number, since it uses less digits than its factorization.

163430399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512361.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 163430399 is about 12783.9899483690. The cubic root of 163430399 is about 546.7359277123.

The spelling of 163430399 in words is "one hundred sixty-three million, four hundred thirty thousand, three hundred ninety-nine".