40331322 has 12 divisors (see below), whose sum is σ = 87384570. Its totient is φ = 13443768.

The previous prime is 40331297. The next prime is 40331323. The reversal of 40331322 is 22313304.

40331322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 33628401 + 6702921 = 5799^2 + 2589^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2240629 = 40331322 / (4 + 0 + 3 + 3 + 1 + 3 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 40331295 and 40331304.

It is not an unprimeable number, because it can be changed into a prime (40331323) 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, 1120297 + ... + 1120332.

Almost surely, 2^40331322 is an apocalyptic number.

40331322 is an abundant number, since it is smaller than the sum of its proper divisors (47053248).

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

40331322 is a wasteful number, since it uses less digits than its factorization.

40331322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240637 (or 2240634 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 40331322 is about 6350.6946076788. The cubic root of 40331322 is about 342.9368485821.

Adding to 40331322 its reverse (22313304), we get a palindrome (62644626).

The spelling of 40331322 in words is "forty million, three hundred thirty-one thousand, three hundred twenty-two".