450015845 has 18 divisors (see below), whose sum is σ = 553492338. Its totient is φ = 351246688.

The previous prime is 450015781. The next prime is 450015869. The reversal of 450015845 is 548510054.

It can be written as a sum of positive squares in 3 ways, for example, as 123165604 + 326850241 = 11098^2 + 18079^2 .

It is not a de Polignac number, because 450015845 - 2⁶ = 450015781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2513966 + ... + 2514144.

Almost surely, 2^450015845 is an apocalyptic number.

It is an amenable number.

450015845 is a deficient number, since it is larger than the sum of its proper divisors (103476493).

450015845 is an frugal number, since it uses more digits than its factorization.

450015845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 450015845 is about 21213.5769025405. The cubic root of 450015845 is about 766.3184264902.

Adding to 450015845 its reverse (548510054), we get a palindrome (998525899).

The spelling of 450015845 in words is "four hundred fifty million, fifteen thousand, eight hundred forty-five".