40800040080 has 80 divisors (see below), whose sum is σ = 126503778240. Its totient is φ = 10877976064.

The previous prime is 40800040031. The next prime is 40800040087. The reversal of 40800040080 is 8004000804.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a self number, because there is not a number n which added to its sum of digits gives 40800040080.

It is not an unprimeable number, because it can be changed into a prime (40800040087) 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, 1620226 + ... + 1645214.

It is an arithmetic number, because the mean of its divisors is an integer number (1581297228).

Almost surely, 2^40800040080 is an apocalyptic number.

40800040080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40800040080 is an abundant number, since it is smaller than the sum of its proper divisors (85703738160).

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

40800040080 is a wasteful number, since it uses less digits than its factorization.

40800040080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31808 (or 31802 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 40800040080 its reverse (8004000804), we get a palindrome (48804040884).

The spelling of 40800040080 in words is "forty billion, eight hundred million, forty thousand, eighty".