328247730 has 48 divisors (see below), whose sum is σ = 903650904. Its totient is φ = 82383360.

The previous prime is 328247729. The next prime is 328247737. The reversal of 328247730 is 37742823.

It can be written as a sum of positive squares in 4 ways, for example, as 315737361 + 12510369 = 17769^2 + 3537^2 .

It is not an unprimeable number, because it can be changed into a prime (328247737) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 105741 + ... + 108800.

Almost surely, 2^328247730 is an apocalyptic number.

328247730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

328247730 is an abundant number, since it is smaller than the sum of its proper divisors (575403174).

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

328247730 is a wasteful number, since it uses less digits than its factorization.

328247730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214571 (or 214568 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 328247730 is about 18117.6082858638. The cubic root of 328247730 is about 689.8170277287.

The spelling of 328247730 in words is "three hundred twenty-eight million, two hundred forty-seven thousand, seven hundred thirty".