40004230440 has 128 divisors (see below), whose sum is σ = 121753497600. Its totient is φ = 10513685760.

The previous prime is 40004230421. The next prime is 40004230451. The reversal of 40004230440 is 4403240004.

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, 4288101 + ... + 4297419.

It is an arithmetic number, because the mean of its divisors is an integer number (951199200).

Almost surely, 2^40004230440 is an apocalyptic number.

40004230440 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 40004230440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60876748800).

40004230440 is an abundant number, since it is smaller than the sum of its proper divisors (81749267160).

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

40004230440 is a wasteful number, since it uses less digits than its factorization.

40004230440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9847 (or 9843 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 40004230440 its reverse (4403240004), we get a palindrome (44407470444).

The spelling of 40004230440 in words is "forty billion, four million, two hundred thirty thousand, four hundred forty".