40347398 has 24 divisors (see below), whose sum is σ = 74901168. Its totient is φ = 15960672.

The previous prime is 40347389. The next prime is 40347401. The reversal of 40347398 is 89374304.

40347398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 6161 + ... + 10892.

It is an arithmetic number, because the mean of its divisors is an integer number (3120882).

Almost surely, 2^40347398 is an apocalyptic number.

40347398 is a deficient number, since it is larger than the sum of its proper divisors (34553770).

40347398 is a wasteful number, since it uses less digits than its factorization.

40347398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17088 (or 17075 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 40347398 is about 6351.9601699003. The cubic root of 40347398 is about 342.9824072213.

The spelling of 40347398 in words is "forty million, three hundred forty-seven thousand, three hundred ninety-eight".