450044405 has 4 divisors (see below), whose sum is σ = 540053292. Its totient is φ = 360035520.

The previous prime is 450044351. The next prime is 450044447. The reversal of 450044405 is 504440054.

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

It can be written as a sum of positive squares in 2 ways, for example, as 159921316 + 290123089 = 12646^2 + 17033^2 .

It is not a de Polignac number, because 450044405 - 2⁶ = 450044341 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 3 ways as a sum of consecutive naturals, for example, 45004436 + ... + 45004445.

It is an arithmetic number, because the mean of its divisors is an integer number (135013323).

Almost surely, 2^450044405 is an apocalyptic number.

It is an amenable number.

450044405 is a deficient number, since it is larger than the sum of its proper divisors (90008887).

450044405 is an equidigital number, since it uses as much as digits as its factorization.

450044405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90008886.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 450044405 is about 21214.2500456651. The cubic root of 450044405 is about 766.3346374685.

Adding to 450044405 its reverse (504440054), we get a palindrome (954484459).

The spelling of 450044405 in words is "four hundred fifty million, forty-four thousand, four hundred five".