326040 has 128 divisors (see below), whose sum is σ = 1209600. Its totient is φ = 69120.

The previous prime is 326023. The next prime is 326057. The reversal of 326040 is 40623.

326040 is nontrivially palindromic in base 14.

326040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 571²-1.

It is an interprime number because it is at equal distance from previous prime (326023) and next prime (326057).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17151 + ... + 17169.

It is an arithmetic number, because the mean of its divisors is an integer number (9450).

2³²⁶⁰⁴⁰ is an apocalyptic number.

326040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

326040 is the 330-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604800).

326040 is an abundant number, since it is smaller than the sum of its proper divisors (883560).

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

326040 is a wasteful number, since it uses less digits than its factorization.

326040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 326040 is about 570.9991243426. Note that the first 3 decimals coincide. The cubic root of 326040 is about 68.8267022726.

326040 divided by its sum of digits (15) gives a triangular number (21736 = T₂₀₈).

Adding to 326040 its reverse (40623), we get a palindrome (366663).

The spelling of 326040 in words is "three hundred twenty-six thousand, forty".