328176720 has 120 divisors (see below), whose sum is σ = 1118740896. Its totient is φ = 86194944.

The previous prime is 328176707. The next prime is 328176733. The reversal of 328176720 is 27671823.

It is an interprime number because it is at equal distance from previous prime (328176707) and next prime (328176733).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 44839 + ... + 51641.

Almost surely, 2^328176720 is an apocalyptic number.

328176720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328176720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559370448).

328176720 is an abundant number, since it is smaller than the sum of its proper divisors (790564176).

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

328176720 is a wasteful number, since it uses less digits than its factorization.

328176720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889 (or 6880 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 328176720 is about 18115.6484841145. The cubic root of 328176720 is about 689.7672813174.

The spelling of 328176720 in words is "three hundred twenty-eight million, one hundred seventy-six thousand, seven hundred twenty".