40006671 has 8 divisors (see below), whose sum is σ = 53497344. Its totient is φ = 26593560.

The previous prime is 40006663. The next prime is 40006697. The reversal of 40006671 is 17660004.

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

It is not a de Polignac number, because 40006671 - 2³ = 40006663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40006621) 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, 18175 + ... + 20256.

It is an arithmetic number, because the mean of its divisors is an integer number (6687168).

Almost surely, 2^40006671 is an apocalyptic number.

40006671 is a deficient number, since it is larger than the sum of its proper divisors (13490673).

40006671 is a wasteful number, since it uses less digits than its factorization.

40006671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38781.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 40006671 is about 6325.0826872065. The cubic root of 40006671 is about 342.0142003611.

Adding to 40006671 its reverse (17660004), we get a palindrome (57666675).

The spelling of 40006671 in words is "forty million, six thousand, six hundred seventy-one".