40031347 has 8 divisors (see below), whose sum is σ = 42266000. Its totient is φ = 37809504.

The previous prime is 40031317. The next prime is 40031353. The reversal of 40031347 is 74313004.

It is a happy number.

40031347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40031347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40031317) 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, 3613 + ... + 9649.

It is an arithmetic number, because the mean of its divisors is an integer number (5283250).

Almost surely, 2^40031347 is an apocalyptic number.

40031347 is a deficient number, since it is larger than the sum of its proper divisors (2234653).

40031347 is a wasteful number, since it uses less digits than its factorization.

40031347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6405.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 40031347 is about 6327.0330329468. The cubic root of 40031347 is about 342.0845037016.

The spelling of 40031347 in words is "forty million, thirty-one thousand, three hundred forty-seven".