328811740 has 24 divisors (see below), whose sum is σ = 691110000. Its totient is φ = 131409408.

The previous prime is 328811731. The next prime is 328811753. The reversal of 328811740 is 47118823.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 328811696 and 328811705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18399 + ... + 31561.

It is an arithmetic number, because the mean of its divisors is an integer number (28796250).

Almost surely, 2^328811740 is an apocalyptic number.

It is an amenable number.

328811740 is an abundant number, since it is smaller than the sum of its proper divisors (362298260).

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

328811740 is a wasteful number, since it uses less digits than its factorization.

328811740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14421 (or 14419 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 328811740 is about 18133.1668497259. The cubic root of 328811740 is about 690.2118931948.

The spelling of 328811740 in words is "three hundred twenty-eight million, eight hundred eleven thousand, seven hundred forty".