40684367 has 4 divisors (see below), whose sum is σ = 40835880. Its totient is φ = 40532856.

The previous prime is 40684351. The next prime is 40684379. The reversal of 40684367 is 76348604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40684367 - 2⁴ = 40684351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40684367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40684667) 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, 75353 + ... + 75890.

It is an arithmetic number, because the mean of its divisors is an integer number (10208970).

Almost surely, 2^40684367 is an apocalyptic number.

40684367 is a deficient number, since it is larger than the sum of its proper divisors (151513).

40684367 is a wasteful number, since it uses less digits than its factorization.

40684367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151512.

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

The square root of 40684367 is about 6378.4298224563. The cubic root of 40684367 is about 343.9345890368.

The spelling of 40684367 in words is "forty million, six hundred eighty-four thousand, three hundred sixty-seven".