40470071 has 4 divisors (see below), whose sum is σ = 41040144. Its totient is φ = 39900000.

The previous prime is 40470061. The next prime is 40470083. The reversal of 40470071 is 17007404.

40470071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40470071 - 2¹⁴ = 40453687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40470061) 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 in 3 ways as a sum of consecutive naturals, for example, 284930 + ... + 285071.

It is an arithmetic number, because the mean of its divisors is an integer number (10260036).

Almost surely, 2^40470071 is an apocalyptic number.

40470071 is a deficient number, since it is larger than the sum of its proper divisors (570073).

40470071 is an equidigital number, since it uses as much as digits as its factorization.

40470071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570072.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 40470071 is about 6361.6091517791. The cubic root of 40470071 is about 343.3296589504.

Adding to 40470071 its reverse (17007404), we get a palindrome (57477475).

The spelling of 40470071 in words is "forty million, four hundred seventy thousand, seventy-one".