328343240 has 32 divisors (see below), whose sum is σ = 739930680. Its totient is φ = 131131392.

The previous prime is 328343221. The next prime is 328343251. The reversal of 328343240 is 42343823.

It can be written as a sum of positive squares in 4 ways, for example, as 267845956 + 60497284 = 16366^2 + 7778^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20822 + ... + 33018.

Almost surely, 2^328343240 is an apocalyptic number.

It is an amenable number.

328343240 is an abundant number, since it is smaller than the sum of its proper divisors (411587440).

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

328343240 is a wasteful number, since it uses less digits than its factorization.

328343240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12881 (or 12877 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 328343240 is about 18120.2439277180. The cubic root of 328343240 is about 689.8839264246.

The spelling of 328343240 in words is "three hundred twenty-eight million, three hundred forty-three thousand, two hundred forty".