40038671 has 2 divisors, whose sum is σ = 40038672. Its totient is φ = 40038670.

The previous prime is 40038667. The next prime is 40038679. The reversal of 40038671 is 17683004.

40038671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40038671 - 2² = 40038667 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40038679) 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 as a sum of consecutive naturals, namely, 20019335 + 20019336.

It is an arithmetic number, because the mean of its divisors is an integer number (20019336).

Almost surely, 2^40038671 is an apocalyptic number.

40038671 is a deficient number, since it is larger than the sum of its proper divisors (1).

40038671 is an equidigital number, since it uses as much as digits as its factorization.

40038671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 40038671 is about 6327.6117927698. The cubic root of 40038671 is about 342.1053646378.

The spelling of 40038671 in words is "forty million, thirty-eight thousand, six hundred seventy-one".