40330442 has 16 divisors (see below), whose sum is σ = 62748672. Its totient is φ = 19420560.

The previous prime is 40330441. The next prime is 40330457. The reversal of 40330442 is 24403304.

It is a happy number.

40330442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40330441) 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 7 ways as a sum of consecutive naturals, for example, 12368 + ... + 15284.

It is an arithmetic number, because the mean of its divisors is an integer number (3921792).

Almost surely, 2^40330442 is an apocalyptic number.

40330442 is a deficient number, since it is larger than the sum of its proper divisors (22418230).

40330442 is a wasteful number, since it uses less digits than its factorization.

40330442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40330442 is about 6350.6253235410. The cubic root of 40330442 is about 342.9343543534.

Adding to 40330442 its reverse (24403304), we get a palindrome (64733746).

The spelling of 40330442 in words is "forty million, three hundred thirty thousand, four hundred forty-two".