40534435424 has 144 divisors (see below), whose sum is σ = 94112928000. Its totient is φ = 17133532416.

The previous prime is 40534435399. The next prime is 40534435429. The reversal of 40534435424 is 42453443504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40534435429) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 67669877 + ... + 67670475.

It is an arithmetic number, because the mean of its divisors is an integer number (653562000).

Almost surely, 2^40534435424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40534435424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47056464000).

40534435424 is an abundant number, since it is smaller than the sum of its proper divisors (53578492576).

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

40534435424 is a wasteful number, since it uses less digits than its factorization.

40534435424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 38.

Adding to 40534435424 its reverse (42453443504), we get a palindrome (82987878928).

The spelling of 40534435424 in words is "forty billion, five hundred thirty-four million, four hundred thirty-five thousand, four hundred twenty-four".