328422732 has 48 divisors (see below), whose sum is σ = 839161344. Its totient is φ = 99144000.

The previous prime is 328422683. The next prime is 328422737. The reversal of 328422732 is 237224823.

It is a super-2 number, since 2×328422732² = 215722981788687648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 328422693 and 328422702.

It is not an unprimeable number, because it can be changed into a prime (328422737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31182 + ... + 40362.

It is an arithmetic number, because the mean of its divisors is an integer number (17482528).

Almost surely, 2^328422732 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 328422732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419580672).

328422732 is an abundant number, since it is smaller than the sum of its proper divisors (510738612).

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

328422732 is a wasteful number, since it uses less digits than its factorization.

328422732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9470 (or 9468 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 328422732 is about 18122.4372533056. The cubic root of 328422732 is about 689.9395956364.

The spelling of 328422732 in words is "three hundred twenty-eight million, four hundred twenty-two thousand, seven hundred thirty-two".