40959915 has 16 divisors (see below), whose sum is σ = 68985600. Its totient is φ = 20695392.

The previous prime is 40959871. The next prime is 40959929. The reversal of 40959915 is 51995904.

It is a happy number.

It is not a de Polignac number, because 40959915 - 2¹⁰ = 40958891 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 71575 + ... + 72144.

It is an arithmetic number, because the mean of its divisors is an integer number (4311600).

Almost surely, 2^40959915 is an apocalyptic number.

40959915 is a deficient number, since it is larger than the sum of its proper divisors (28025685).

40959915 is a wasteful number, since it uses less digits than its factorization.

40959915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143746.

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 40959915 is about 6399.9933593716. The cubic root of 40959915 is about 344.7093119584.

The spelling of 40959915 in words is "forty million, nine hundred fifty-nine thousand, nine hundred fifteen".