40638327 has 4 divisors (see below), whose sum is σ = 54184440. Its totient is φ = 27092216.

The previous prime is 40638317. The next prime is 40638329. The reversal of 40638327 is 72383604.

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 40638327 - 2⁸ = 40638071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40638329) 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, 6773052 + ... + 6773057.

It is an arithmetic number, because the mean of its divisors is an integer number (13546110).

Almost surely, 2^40638327 is an apocalyptic number.

40638327 is a deficient number, since it is larger than the sum of its proper divisors (13546113).

40638327 is a wasteful number, since it uses less digits than its factorization.

40638327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13546112.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 40638327 is about 6374.8197621580. The cubic root of 40638327 is about 343.8048035157.

The spelling of 40638327 in words is "forty million, six hundred thirty-eight thousand, three hundred twenty-seven".