40322443 has 6 divisors (see below), whose sum is σ = 46905756. Its totient is φ = 34562052.

The previous prime is 40322437. The next prime is 40322449. The reversal of 40322443 is 34422304.

40322443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40322437) and next prime (40322449).

It is a de Polignac number, because none of the positive numbers 2^k-40322443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40322449) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 411405 + ... + 411502.

It is an arithmetic number, because the mean of its divisors is an integer number (7817626).

Almost surely, 2^40322443 is an apocalyptic number.

40322443 is a deficient number, since it is larger than the sum of its proper divisors (6583313).

40322443 is an equidigital number, since it uses as much as digits as its factorization.

40322443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822921 (or 822914 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 40322443 is about 6349.9955118094. The cubic root of 40322443 is about 342.9116807175.

Adding to 40322443 its reverse (34422304), we get a palindrome (74744747).

The spelling of 40322443 in words is "forty million, three hundred twenty-two thousand, four hundred forty-three".