328379968 has 70 divisors (see below), whose sum is σ = 760544326. Its totient is φ = 140668416.

The previous prime is 328379957. The next prime is 328379969. The reversal of 328379968 is 869973823.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 199148544 + 129231424 = 14112^2 + 11368^2 .

It is not an unprimeable number, because it can be changed into a prime (328379969) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 152596 + ... + 154732.

Almost surely, 2^328379968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328379968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380272163).

328379968 is an abundant number, since it is smaller than the sum of its proper divisors (432164358).

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

328379968 is an frugal number, since it uses more digits than its factorization.

328379968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177 (or 2146 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 55.

The square root of 328379968 is about 18121.2573515195. The cubic root of 328379968 is about 689.9096486050.

The spelling of 328379968 in words is "three hundred twenty-eight million, three hundred seventy-nine thousand, nine hundred sixty-eight".