40959986 has 8 divisors (see below), whose sum is σ = 61888860. Its totient is φ = 20330368.

The previous prime is 40959979. The next prime is 40960001. The reversal of 40959986 is 68995904.

It can be written as a sum of positive squares in 2 ways, for example, as 39929761 + 1030225 = 6319^2 + 1015^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74471 + ... + 75018.

Almost surely, 2^40959986 is an apocalyptic number.

40959986 is a deficient number, since it is larger than the sum of its proper divisors (20928874).

40959986 is a wasteful number, since it uses less digits than its factorization.

40959986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149628.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 40959986 is about 6399.9989062499. The cubic root of 40959986 is about 344.7095111315.

The spelling of 40959986 in words is "forty million, nine hundred fifty-nine thousand, nine hundred eighty-six".