40323816 has 96 divisors (see below), whose sum is σ = 119552160. Its totient is φ = 12203136.

The previous prime is 40323799. The next prime is 40323827. The reversal of 40323816 is 61832304.

It is a happy number.

40323816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40323816.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62391 + ... + 63033.

It is an arithmetic number, because the mean of its divisors is an integer number (1245335).

Almost surely, 2^40323816 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 40323816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59776080).

40323816 is an abundant number, since it is smaller than the sum of its proper divisors (79228344).

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

40323816 is a wasteful number, since it uses less digits than its factorization.

40323816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 40323816 is about 6350.1036212018. The cubic root of 40323816 is about 342.9155727799.

The spelling of 40323816 in words is "forty million, three hundred twenty-three thousand, eight hundred sixteen".