40040880 has 160 divisors (see below), whose sum is σ = 140348160. Its totient is φ = 9354240.

The previous prime is 40040873. The next prime is 40040893. The reversal of 40040880 is 8804004.

40040880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40040880.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 76299 + ... + 76821.

It is an arithmetic number, because the mean of its divisors is an integer number (877176).

Almost surely, 2^40040880 is an apocalyptic number.

40040880 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 40040880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70174080).

40040880 is an abundant number, since it is smaller than the sum of its proper divisors (100307280).

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

40040880 is a wasteful number, since it uses less digits than its factorization.

40040880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 573 counting only the distinct ones).

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

The square root of 40040880 is about 6327.7863427900. The cubic root of 40040880 is about 342.1116560292. Note that the first 3 decimals are identical.

Adding to 40040880 its reverse (8804004), we get a palindrome (48844884).

The spelling of 40040880 in words is "forty million, forty thousand, eight hundred eighty".