40012471 has 2 divisors, whose sum is σ = 40012472. Its totient is φ = 40012470.

The previous prime is 40012459. The next prime is 40012477. The reversal of 40012471 is 17421004.

40012471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40012471 - 2¹⁵ = 39979703 is a prime.

It is a super-3 number, since 3×40012471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40012477) 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, 20006235 + 20006236.

It is an arithmetic number, because the mean of its divisors is an integer number (20006236).

Almost surely, 2^40012471 is an apocalyptic number.

40012471 is a deficient number, since it is larger than the sum of its proper divisors (1).

40012471 is an equidigital number, since it uses as much as digits as its factorization.

40012471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 40012471 is about 6325.5411626200. The cubic root of 40012471 is about 342.0307274923.

Adding to 40012471 its reverse (17421004), we get a palindrome (57433475).

The spelling of 40012471 in words is "forty million, twelve thousand, four hundred seventy-one".