328467681 has 12 divisors (see below), whose sum is σ = 475213440. Its totient is φ = 218627640.

The previous prime is 328467673. The next prime is 328467739. The reversal of 328467681 is 186764823.

It is not a de Polignac number, because 328467681 - 2³ = 328467673 is a prime.

It is a super-2 number, since 2×328467681² = 215782034923035522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (328467641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23241 + ... + 34598.

It is an arithmetic number, because the mean of its divisors is an integer number (39601120).

Almost surely, 2^328467681 is an apocalyptic number.

It is an amenable number.

328467681 is a deficient number, since it is larger than the sum of its proper divisors (146745759).

328467681 is a wasteful number, since it uses less digits than its factorization.

328467681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58476 (or 58473 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 328467681 is about 18123.6773586378. The cubic root of 328467681 is about 689.9710699906.

The spelling of 328467681 in words is "three hundred twenty-eight million, four hundred sixty-seven thousand, six hundred eighty-one".