40031342 has 16 divisors (see below), whose sum is σ = 64981392. Its totient is φ = 18385920.

The previous prime is 40031317. The next prime is 40031353. The reversal of 40031342 is 24313004.

40031342 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 40031342.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1838 + ... + 9134.

It is an arithmetic number, because the mean of its divisors is an integer number (4061337).

Almost surely, 2^40031342 is an apocalyptic number.

40031342 is a deficient number, since it is larger than the sum of its proper divisors (24950050).

40031342 is a wasteful number, since it uses less digits than its factorization.

40031342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40031342 is about 6327.0326378169. The cubic root of 40031342 is about 342.0844894592.

Adding to 40031342 its reverse (24313004), we get a palindrome (64344346).

The spelling of 40031342 in words is "forty million, thirty-one thousand, three hundred forty-two".