328130481 has 32 divisors (see below), whose sum is σ = 533364480. Its totient is φ = 175159296.

The previous prime is 328130477. The next prime is 328130483. The reversal of 328130481 is 184031823.

It is not a de Polignac number, because 328130481 - 2² = 328130477 is a prime.

It is a super-2 number, since 2×328130481² = 215339225122582722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (328130483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45555 + ... + 52263.

It is an arithmetic number, because the mean of its divisors is an integer number (16667640).

Almost surely, 2^328130481 is an apocalyptic number.

It is an amenable number.

328130481 is a deficient number, since it is larger than the sum of its proper divisors (205233999).

328130481 is a wasteful number, since it uses less digits than its factorization.

328130481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6873.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 328130481 is about 18114.3722220782. The cubic root of 328130481 is about 689.7348844964.

The spelling of 328130481 in words is "three hundred twenty-eight million, one hundred thirty thousand, four hundred eighty-one".