326988 has 36 divisors (see below), whose sum is σ = 856128. Its totient is φ = 105120.

The previous prime is 326983. The next prime is 326993. The reversal of 326988 is 889623.

It is an interprime number because it is at equal distance from previous prime (326983) and next prime (326993).

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (326983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 970 + ... + 1262.

2³²⁶⁹⁸⁸ 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 326988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428064).

326988 is an abundant number, since it is smaller than the sum of its proper divisors (529140).

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

326988 is a wasteful number, since it uses less digits than its factorization.

326988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 329 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 326988 is about 571.8286456623. The cubic root of 326988 is about 68.8933449925.

The spelling of 326988 in words is "three hundred twenty-six thousand, nine hundred eighty-eight".