328130469 has 6 divisors (see below), whose sum is σ = 473966246. Its totient is φ = 218753640.

The previous prime is 328130459. The next prime is 328130477. The reversal of 328130469 is 964031823.

It can be written as a sum of positive squares in only one way, i.e., 222308100 + 105822369 = 14910^2 + 10287^2 .

It is not a de Polignac number, because 328130469 - 2⁹ = 328129957 is a prime.

It is a super-2 number, since 2×328130469² = 215339209372319922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328130419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18229462 + ... + 18229479.

Almost surely, 2^328130469 is an apocalyptic number.

It is an amenable number.

328130469 is a deficient number, since it is larger than the sum of its proper divisors (145835777).

328130469 is a wasteful number, since it uses less digits than its factorization.

328130469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36458947 (or 36458944 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 328130469 is about 18114.3718908495. The cubic root of 328130469 is about 689.7348760883.

The spelling of 328130469 in words is "three hundred twenty-eight million, one hundred thirty thousand, four hundred sixty-nine".