40971586 has 8 divisors (see below), whose sum is σ = 61498044. Its totient is φ = 20472240.

The previous prime is 40971583. The next prime is 40971599. The reversal of 40971586 is 68517904.

It can be written as a sum of positive squares in 2 ways, for example, as 38825361 + 2146225 = 6231^2 + 1465^2 .

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

It is a super-3 number, since 3×40971586³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40971583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2445 + ... + 9376.

Almost surely, 2^40971586 is an apocalyptic number.

40971586 is a deficient number, since it is larger than the sum of its proper divisors (20526458).

40971586 is a wasteful number, since it uses less digits than its factorization.

40971586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13556.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 40971586 is about 6400.9050922506. The cubic root of 40971586 is about 344.7420490082.

The spelling of 40971586 in words is "forty million, nine hundred seventy-one thousand, five hundred eighty-six".