418572009 has 32 divisors (see below), whose sum is σ = 664592640. Its totient is φ = 259687296.

The previous prime is 418571983. The next prime is 418572029. The reversal of 418572009 is 900275814.

It is not a de Polignac number, because 418572009 - 2⁸ = 418571753 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (418572029) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 13869 + ... + 32085.

It is an arithmetic number, because the mean of its divisors is an integer number (20768520).

Almost surely, 2^418572009 is an apocalyptic number.

It is an amenable number.

418572009 is a deficient number, since it is larger than the sum of its proper divisors (246020631).

418572009 is a wasteful number, since it uses less digits than its factorization.

418572009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18286 (or 18280 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 418572009 is about 20459.0324551285. The cubic root of 418572009 is about 748.0375414875.

The spelling of 418572009 in words is "four hundred eighteen million, five hundred seventy-two thousand, nine".