328143888 has 60 divisors (see below), whose sum is σ = 933426988. Its totient is φ = 107585280.

The previous prime is 328143883. The next prime is 328143917. The reversal of 328143888 is 888341823.

It can be written as a sum of positive squares in 2 ways, for example, as 36144144 + 291999744 = 6012^2 + 17088^2 .

It is a super-2 number, since 2×328143888² = 215356822463513088, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (328143883) 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, 9895 + ... + 27462.

Almost surely, 2^328143888 is an apocalyptic number.

It is an amenable number.

328143888 is an abundant number, since it is smaller than the sum of its proper divisors (605283100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328143888 is a wasteful number, since it uses less digits than its factorization.

328143888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37432 (or 37423 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 328143888 is about 18114.7422835656. The cubic root of 328143888 is about 689.7442782692.

The spelling of 328143888 in words is "three hundred twenty-eight million, one hundred forty-three thousand, eight hundred eighty-eight".