80205340 has 12 divisors (see below), whose sum is σ = 168431256. Its totient is φ = 32082128.

The previous prime is 80205317. The next prime is 80205343. The reversal of 80205340 is 4350208.

80205340 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

80205340 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80205343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005114 + ... + 2005153.

It is an arithmetic number, because the mean of its divisors is an integer number (14035938).

Almost surely, 2^80205340 is an apocalyptic number.

It is an amenable number.

80205340 is an abundant number, since it is smaller than the sum of its proper divisors (88225916).

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

80205340 is a wasteful number, since it uses less digits than its factorization.

80205340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010276 (or 4010274 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 80205340 is about 8955.7434085619. The cubic root of 80205340 is about 431.2552827190.

Adding to 80205340 its reverse (4350208), we get a palindrome (84555548).

The spelling of 80205340 in words is "eighty million, two hundred five thousand, three hundred forty".