40342 has 8 divisors (see below), whose sum is σ = 63216. Its totient is φ = 19272.

The previous prime is 40289. The next prime is 40343. The reversal of 40342 is 24304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393 + ... + 484.

It is an arithmetic number, because the mean of its divisors is an integer number (7902).

2⁴⁰³⁴² is an apocalyptic number.

40342 is a deficient number, since it is larger than the sum of its proper divisors (22874).

40342 is a wasteful number, since it uses less digits than its factorization.

40342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 40342 is about 200.8531802088. The cubic root of 40342 is about 34.2967110889.

Adding to 40342 its reverse (24304), we get a palindrome (64646).

The spelling of 40342 in words is "forty thousand, three hundred forty-two", and thus it is an iban number.