450186945 has 64 divisors (see below), whose sum is σ = 828092160. Its totient is φ = 206880768.

The previous prime is 450186917. The next prime is 450186953. The reversal of 450186945 is 549681054.

It is not a de Polignac number, because 450186945 - 2¹⁰ = 450185921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 450186897 and 450186906.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 460297 + ... + 461273.

It is an arithmetic number, because the mean of its divisors is an integer number (12938940).

Almost surely, 2^450186945 is an apocalyptic number.

It is an amenable number.

450186945 is a deficient number, since it is larger than the sum of its proper divisors (377905215).

450186945 is a wasteful number, since it uses less digits than its factorization.

450186945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 450186945 is about 21217.6093139637. The cubic root of 450186945 is about 766.4155345294.

The spelling of 450186945 in words is "four hundred fifty million, one hundred eighty-six thousand, nine hundred forty-five".