40971605 has 8 divisors (see below), whose sum is σ = 49201152. Its totient is φ = 32753808.

The previous prime is 40971599. The next prime is 40971629. The reversal of 40971605 is 50617904.

It is a happy number.

40971605 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 40971605 - 2²⁰ = 39923029 is a prime.

It is a super-3 number, since 3×40971605³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 9644 + ... + 13226.

It is an arithmetic number, because the mean of its divisors is an integer number (6150144).

Almost surely, 2^40971605 is an apocalyptic number.

It is an amenable number.

40971605 is a deficient number, since it is larger than the sum of its proper divisors (8229547).

40971605 is a wasteful number, since it uses less digits than its factorization.

40971605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 40971605 is about 6400.9065764156. The cubic root of 40971605 is about 344.7421022979.

The spelling of 40971605 in words is "forty million, nine hundred seventy-one thousand, six hundred five".