40289671 has 8 divisors (see below), whose sum is σ = 43873200. Its totient is φ = 36852480.

The previous prime is 40289663. The next prime is 40289687. The reversal of 40289671 is 17698204.

40289671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40289671 - 2³ = 40289663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40289671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40289621) 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 7 ways as a sum of consecutive naturals, for example, 36010 + ... + 37111.

It is an arithmetic number, because the mean of its divisors is an integer number (5484150).

Almost surely, 2^40289671 is an apocalyptic number.

40289671 is a deficient number, since it is larger than the sum of its proper divisors (3583529).

40289671 is a wasteful number, since it uses less digits than its factorization.

40289671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73169.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 40289671 is about 6347.4145130124. The cubic root of 40289671 is about 342.8187552342.

The spelling of 40289671 in words is "forty million, two hundred eighty-nine thousand, six hundred seventy-one".