416645985 has 32 divisors (see below), whose sum is σ = 776252160. Its totient is φ = 186870528.

The previous prime is 416645981. The next prime is 416646019. The reversal of 416645985 is 589546614.

It is not a de Polignac number, because 416645985 - 2² = 416645981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (416645981) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 31870 + ... + 42999.

It is an arithmetic number, because the mean of its divisors is an integer number (24257880).

Almost surely, 2^416645985 is an apocalyptic number.

It is an amenable number.

416645985 is a deficient number, since it is larger than the sum of its proper divisors (359606175).

416645985 is a wasteful number, since it uses less digits than its factorization.

416645985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74937.

The product of its digits is 1036800, while the sum is 48.

The square root of 416645985 is about 20411.9079216030. The cubic root of 416645985 is about 746.8884331658. Note that the first 3 decimals are identical.

The spelling of 416645985 in words is "four hundred sixteen million, six hundred forty-five thousand, nine hundred eighty-five".