80400308 has 12 divisors (see below), whose sum is σ = 140764260. Its totient is φ = 40181952.

The previous prime is 80400301. The next prime is 80400319. The reversal of 80400308 is 80300408.

It can be written as a sum of positive squares in 2 ways, for example, as 75829264 + 4571044 = 8708^2 + 2138^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80400301) 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, 12410 + ... + 17742.

It is an arithmetic number, because the mean of its divisors is an integer number (11730355).

Almost surely, 2^80400308 is an apocalyptic number.

It is an amenable number.

80400308 is a deficient number, since it is larger than the sum of its proper divisors (60363952).

80400308 is a wasteful number, since it uses less digits than its factorization.

80400308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9106 (or 9104 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 80400308 is about 8966.6218834074. The cubic root of 80400308 is about 431.6044404439.

It can be divided in two parts, 80400 and 308, that added together give a palindrome (80708).

The spelling of 80400308 in words is "eighty million, four hundred thousand, three hundred eight".