40432311808 has 80 divisors (see below), whose sum is σ = 94822082784. Its totient is φ = 16859750400.

The previous prime is 40432311767. The next prime is 40432311853. The reversal of 40432311808 is 80811323404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19843 + ... + 285058.

Almost surely, 2^40432311808 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 40432311808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47411041392).

40432311808 is an abundant number, since it is smaller than the sum of its proper divisors (54389770976).

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

40432311808 is an equidigital number, since it uses as much as digits as its factorization.

40432311808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304963 (or 304947 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 40432311808 in words is "forty billion, four hundred thirty-two million, three hundred eleven thousand, eight hundred eight".