40543344432 has 30 divisors (see below), whose sum is σ = 113465054612. Its totient is φ = 13514448096.

The previous prime is 40543344371. The next prime is 40543344437. The reversal of 40543344432 is 23444334504.

40543344432 is a `hidden beast` number, since 40 + 543 + 3 + 4 + 44 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40543344437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140775358 + ... + 140775645.

Almost surely, 2^40543344432 is an apocalyptic number.

It is an amenable number.

40543344432 is an abundant number, since it is smaller than the sum of its proper divisors (72921710180).

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

40543344432 is a wasteful number, since it uses less digits than its factorization.

40543344432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281551017 (or 281551008 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 36.

Adding to 40543344432 its reverse (23444334504), we get a palindrome (63987678936).

The spelling of 40543344432 in words is "forty billion, five hundred forty-three million, three hundred forty-four thousand, four hundred thirty-two".