40330440432 has 100 divisors (see below), whose sum is σ = 116821444080. Its totient is φ = 13432718592.

The previous prime is 40330440431. The next prime is 40330440457. The reversal of 40330440432 is 23404403304.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40330440396 and 40330440405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40330440431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1697628 + ... + 1721220.

Almost surely, 2^40330440432 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 40330440432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58410722040).

40330440432 is an abundant number, since it is smaller than the sum of its proper divisors (76491003648).

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

40330440432 is a wasteful number, since it uses less digits than its factorization.

40330440432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24932 (or 24917 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 40330440432 its reverse (23404403304), we get a palindrome (63734843736).

The spelling of 40330440432 in words is "forty billion, three hundred thirty million, four hundred forty thousand, four hundred thirty-two".