40718471 has 2 divisors, whose sum is σ = 40718472. Its totient is φ = 40718470.

The previous prime is 40718467. The next prime is 40718507. The reversal of 40718471 is 17481704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40718471 - 2² = 40718467 is a prime.

It is a super-3 number, since 3×40718471³ (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 (40718401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20359235 + 20359236.

It is an arithmetic number, because the mean of its divisors is an integer number (20359236).

Almost surely, 2^40718471 is an apocalyptic number.

40718471 is a deficient number, since it is larger than the sum of its proper divisors (1).

40718471 is an equidigital number, since it uses as much as digits as its factorization.

40718471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 40718471 is about 6381.1026476621. The cubic root of 40718471 is about 344.0306641811.

The spelling of 40718471 in words is "forty million, seven hundred eighteen thousand, four hundred seventy-one".