328430638 has 8 divisors (see below), whose sum is σ = 494058600. Its totient is φ = 163744440.

The previous prime is 328430581. The next prime is 328430653. The reversal of 328430638 is 836034823.

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

It is a junction number, because it is equal to n+sod(n) for n = 328430597 and 328430606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234568 + ... + 235963.

It is an arithmetic number, because the mean of its divisors is an integer number (61757325).

Almost surely, 2^328430638 is an apocalyptic number.

328430638 is a deficient number, since it is larger than the sum of its proper divisors (165627962).

328430638 is a wasteful number, since it uses less digits than its factorization.

328430638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470882.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 328430638 is about 18122.6553793863. The cubic root of 328430638 is about 689.9451318129.

The spelling of 328430638 in words is "three hundred twenty-eight million, four hundred thirty thousand, six hundred thirty-eight".