326646 has 32 divisors (see below), whose sum is σ = 760320. Its totient is φ = 103752.

The previous prime is 326633. The next prime is 326657. The reversal of 326646 is 646623.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

326646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1111 + ... + 1373.

It is an arithmetic number, because the mean of its divisors is an integer number (23760).

2³²⁶⁶⁴⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380160).

326646 is an abundant number, since it is smaller than the sum of its proper divisors (433674).

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

326646 is a wasteful number, since it uses less digits than its factorization.

326646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 291 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 326646 is about 571.5295267963. The cubic root of 326646 is about 68.8693178690.

The spelling of 326646 in words is "three hundred twenty-six thousand, six hundred forty-six".