450065218 has 4 divisors (see below), whose sum is σ = 675097830. Its totient is φ = 225032608.

The previous prime is 450065207. The next prime is 450065233. The reversal of 450065218 is 812560054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 358231329 + 91833889 = 18927^2 + 9583^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 450065218.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112516303 + ... + 112516306.

Almost surely, 2^450065218 is an apocalyptic number.

450065218 is a deficient number, since it is larger than the sum of its proper divisors (225032612).

450065218 is a wasteful number, since it uses less digits than its factorization.

450065218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225032611.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 450065218 is about 21214.7405829060. The cubic root of 450065218 is about 766.3464507301.

The spelling of 450065218 in words is "four hundred fifty million, sixty-five thousand, two hundred eighteen".