4000000080 has 160 divisors (see below), whose sum is σ = 13081305600. Its totient is φ = 1008308736.

The previous prime is 4000000063. The next prime is 4000000133. The reversal of 4000000080 is 800000004.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3369247 + ... + 3370433.

It is an arithmetic number, because the mean of its divisors is an integer number (81758160).

Almost surely, 2^4000000080 is an apocalyptic number.

4000000080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4000000080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6540652800).

4000000080 is an abundant number, since it is smaller than the sum of its proper divisors (9081305520).

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

4000000080 is a wasteful number, since it uses less digits than its factorization.

4000000080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961 (or 1955 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 4000000080 is about 63245.5538358231. The cubic root of 4000000080 is about 1587.4010625509.

Adding to 4000000080 its reverse (800000004), we get a palindrome (4800000084).

The spelling of 4000000080 in words is "four billion, eighty", and thus it is an aban number.