80808040 has 64 divisors (see below), whose sum is σ = 189423360. Its totient is φ = 31000320.

The previous prime is 80808031. The next prime is 80808043. The reversal of 80808040 is 4080808.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80808043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99235 + ... + 100045.

It is an arithmetic number, because the mean of its divisors is an integer number (2959740).

Almost surely, 2^80808040 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 80808040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94711680).

80808040 is an abundant number, since it is smaller than the sum of its proper divisors (108615320).

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

80808040 is a wasteful number, since it uses less digits than its factorization.

80808040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 80808040 is about 8989.3292297034. The cubic root of 80808040 is about 432.3328053893.

Adding to 80808040 its reverse (4080808), we get a palindrome (84888848).

The spelling of 80808040 in words is "eighty million, eight hundred eight thousand, forty".