40043224440 has 96 divisors (see below), whose sum is σ = 130551389280. Its totient is φ = 10644477696.

The previous prime is 40043224423. The next prime is 40043224513. The reversal of 40043224440 is 4442234004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61324 + ... + 289563.

It is an arithmetic number, because the mean of its divisors is an integer number (1359910305).

Almost surely, 2^40043224440 is an apocalyptic number.

40043224440 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 40043224440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65275694640).

40043224440 is an abundant number, since it is smaller than the sum of its proper divisors (90508164840).

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

40043224440 is a wasteful number, since it uses less digits than its factorization.

40043224440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351221 (or 351214 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 40043224440 its reverse (4442234004), we get a palindrome (44485458444).

The spelling of 40043224440 in words is "forty billion, forty-three million, two hundred twenty-four thousand, four hundred forty".