40331718 has 96 divisors (see below), whose sum is σ = 111421440. Its totient is φ = 10264320.

The previous prime is 40331671. The next prime is 40331747. The reversal of 40331718 is 81713304.

It is a junction number, because it is equal to n+sod(n) for n = 40331691 and 40331700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40203 + ... + 41193.

It is an arithmetic number, because the mean of its divisors is an integer number (1160640).

Almost surely, 2^40331718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40331718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55710720).

40331718 is an abundant number, since it is smaller than the sum of its proper divisors (71089722).

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

40331718 is a wasteful number, since it uses less digits than its factorization.

40331718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 40331718 is about 6350.7257852942. The cubic root of 40331718 is about 342.9379709731.

The spelling of 40331718 in words is "forty million, three hundred thirty-one thousand, seven hundred eighteen".