40043471 has 8 divisors (see below), whose sum is σ = 43506960. Its totient is φ = 36634752.

The previous prime is 40043467. The next prime is 40043489. The reversal of 40043471 is 17434004.

40043471 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 40043471 - 2² = 40043467 is a prime.

It is a super-3 number, since 3×40043471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043401) 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, 12161 + ... + 15098.

It is an arithmetic number, because the mean of its divisors is an integer number (5438370).

Almost surely, 2^40043471 is an apocalyptic number.

40043471 is a deficient number, since it is larger than the sum of its proper divisors (3463489).

40043471 is a wasteful number, since it uses less digits than its factorization.

40043471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27385.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 40043471 is about 6327.9910714223. The cubic root of 40043471 is about 342.1190350893.

Adding to 40043471 its reverse (17434004), we get a palindrome (57477475).

The spelling of 40043471 in words is "forty million, forty-three thousand, four hundred seventy-one".