40356871 has 2 divisors, whose sum is σ = 40356872. Its totient is φ = 40356870.

The previous prime is 40356863. The next prime is 40356949. The reversal of 40356871 is 17865304.

40356871 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 40356871 - 2³ = 40356863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40356821) 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, 20178435 + 20178436.

It is an arithmetic number, because the mean of its divisors is an integer number (20178436).

Almost surely, 2^40356871 is an apocalyptic number.

40356871 is a deficient number, since it is larger than the sum of its proper divisors (1).

40356871 is an equidigital number, since it uses as much as digits as its factorization.

40356871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 40356871 is about 6352.7058014676. The cubic root of 40356871 is about 343.0092475981.

The spelling of 40356871 in words is "forty million, three hundred fifty-six thousand, eight hundred seventy-one".