40007071 has 8 divisors (see below), whose sum is σ = 44087120. Its totient is φ = 36070272.

The previous prime is 40007063. The next prime is 40007083. The reversal of 40007071 is 17070004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40007071 - 2³ = 40007063 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 (40007041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35226 + ... + 36343.

It is an arithmetic number, because the mean of its divisors is an integer number (5510890).

Almost surely, 2^40007071 is an apocalyptic number.

40007071 is a deficient number, since it is larger than the sum of its proper divisors (4080049).

40007071 is a wasteful number, since it uses less digits than its factorization.

40007071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71625.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 40007071 is about 6325.1143072675. The cubic root of 40007071 is about 342.0153402145.

Adding to 40007071 its reverse (17070004), we get a palindrome (57077075).

The spelling of 40007071 in words is "forty million, seven thousand, seventy-one".