40347668 has 12 divisors (see below), whose sum is σ = 71662752. Its totient is φ = 19872600.

The previous prime is 40347641. The next prime is 40347673. The reversal of 40347668 is 86674304.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75008 + ... + 75543.

It is an arithmetic number, because the mean of its divisors is an integer number (5971896).

Almost surely, 2^40347668 is an apocalyptic number.

It is an amenable number.

40347668 is a deficient number, since it is larger than the sum of its proper divisors (31315084).

40347668 is a wasteful number, since it uses less digits than its factorization.

40347668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150622 (or 150620 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 40347668 is about 6351.9814231466. The cubic root of 40347668 is about 342.9831722854.

The spelling of 40347668 in words is "forty million, three hundred forty-seven thousand, six hundred sixty-eight".