80340 has 48 divisors (see below), whose sum is σ = 244608. Its totient is φ = 19584.

The previous prime is 80329. The next prime is 80341. The reversal of 80340 is 4308.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80341) by changing a digit.

80340 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, 729 + ... + 831.

It is an arithmetic number, because the mean of its divisors is an integer number (5096).

2⁸⁰³⁴⁰ 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 80340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122304).

80340 is an abundant number, since it is smaller than the sum of its proper divisors (164268).

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

80340 is a wasteful number, since it uses less digits than its factorization.

80340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 80340 is about 283.4431159863. The cubic root of 80340 is about 43.1496498438.

80340 divided by its sum of digits (15) gives a triangular number (5356 = T₁₀₃).

Adding to 80340 its reverse (4308), we get a palindrome (84648).

The spelling of 80340 in words is "eighty thousand, three hundred forty".