40416945 has 16 divisors (see below), whose sum is σ = 66044160. Its totient is φ = 21096704.

The previous prime is 40416931. The next prime is 40416967. The reversal of 40416945 is 54961404.

40416945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40416945 - 2⁶ = 40416881 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 27960 + ... + 29369.

It is an arithmetic number, because the mean of its divisors is an integer number (4127760).

Almost surely, 2^40416945 is an apocalyptic number.

It is an amenable number.

40416945 is a deficient number, since it is larger than the sum of its proper divisors (25627215).

40416945 is a wasteful number, since it uses less digits than its factorization.

40416945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57384.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 40416945 is about 6357.4322646805. The cubic root of 40416945 is about 343.1793608983.

The spelling of 40416945 in words is "forty million, four hundred sixteen thousand, nine hundred forty-five".