40540342 has 12 divisors (see below), whose sum is σ = 64598940. Its totient is φ = 19077536.

The previous prime is 40540337. The next prime is 40540363. The reversal of 40540342 is 24304504.

It is a happy number.

40540342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 5 ways as a sum of consecutive naturals, for example, 34492 + ... + 35647.

It is an arithmetic number, because the mean of its divisors is an integer number (5383245).

Almost surely, 2^40540342 is an apocalyptic number.

40540342 is a deficient number, since it is larger than the sum of its proper divisors (24058598).

40540342 is a wasteful number, since it uses less digits than its factorization.

40540342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70175 (or 70158 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40540342 is about 6367.1298086343. The cubic root of 40540342 is about 343.5282597713.

Adding to 40540342 its reverse (24304504), we get a palindrome (64844846).

The spelling of 40540342 in words is "forty million, five hundred forty thousand, three hundred forty-two".