40319471 has 2 divisors, whose sum is σ = 40319472. Its totient is φ = 40319470.

The previous prime is 40319449. The next prime is 40319497. The reversal of 40319471 is 17491304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40319471 - 2⁶ = 40319407 is a prime.

It is a super-3 number, since 3×40319471³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40319401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20159735 + 20159736.

It is an arithmetic number, because the mean of its divisors is an integer number (20159736).

Almost surely, 2^40319471 is an apocalyptic number.

40319471 is a deficient number, since it is larger than the sum of its proper divisors (1).

40319471 is an equidigital number, since it uses as much as digits as its factorization.

40319471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 40319471 is about 6349.7614915838. The cubic root of 40319471 is about 342.9032556446.

The spelling of 40319471 in words is "forty million, three hundred nineteen thousand, four hundred seventy-one".