80345380 has 12 divisors (see below), whose sum is σ = 168725340. Its totient is φ = 32138144.

The previous prime is 80345323. The next prime is 80345381. The reversal of 80345380 is 8354308.

It can be written as a sum of positive squares in 2 ways, for example, as 9684544 + 70660836 = 3112^2 + 8406^2 .

It is not an unprimeable number, because it can be changed into a prime (80345381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008615 + ... + 2008654.

It is an arithmetic number, because the mean of its divisors is an integer number (14060445).

Almost surely, 2^80345380 is an apocalyptic number.

It is an amenable number.

80345380 is an abundant number, since it is smaller than the sum of its proper divisors (88379960).

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

80345380 is a wasteful number, since it uses less digits than its factorization.

80345380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017278 (or 4017276 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 80345380 is about 8963.5584451712. The cubic root of 80345380 is about 431.5061300016.

Adding to 80345380 its reverse (8354308), we get a palindrome (88699688).

The spelling of 80345380 in words is "eighty million, three hundred forty-five thousand, three hundred eighty".