328624 has 40 divisors (see below), whose sum is σ = 714240. Its totient is φ = 145728.

The previous prime is 328621. The next prime is 328633. The reversal of 328624 is 426823.

It is a happy number.

328624 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6969 + ... + 7015.

It is an arithmetic number, because the mean of its divisors is an integer number (17856).

2³²⁸⁶²⁴ 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 328624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357120).

328624 is an abundant number, since it is smaller than the sum of its proper divisors (385616).

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

328624 is a wasteful number, since it uses less digits than its factorization.

328624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 91 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 328624 is about 573.2573593073. The cubic root of 328624 is about 69.0080505904.

The spelling of 328624 in words is "three hundred twenty-eight thousand, six hundred twenty-four".