40235243232 has 48 divisors (see below), whose sum is σ = 109024538112. Its totient is φ = 12979109760.

The previous prime is 40235243219. The next prime is 40235243291. The reversal of 40235243232 is 23234253204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 40235243232.

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 7 ways as a sum of consecutive naturals, for example, 6756978 + ... + 6762929.

It is an arithmetic number, because the mean of its divisors is an integer number (2271344544).

Almost surely, 2^40235243232 is an apocalyptic number.

It is an amenable number.

40235243232 is an abundant number, since it is smaller than the sum of its proper divisors (68789294880).

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

40235243232 is a wasteful number, since it uses less digits than its factorization.

40235243232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13519951 (or 13519943 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 40235243232 its reverse (23234253204), we get a palindrome (63469496436).

The spelling of 40235243232 in words is "forty billion, two hundred thirty-five million, two hundred forty-three thousand, two hundred thirty-two".