450040513 has 4 divisors (see below), whose sum is σ = 484659028. Its totient is φ = 415422000.

The previous prime is 450040499. The next prime is 450040519. The reversal of 450040513 is 315040054.

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 227195329 + 222845184 = 15073^2 + 14928^2 .

It is a cyclic number.

It is not a de Polignac number, because 450040513 - 2¹³ = 450032321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450040519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17309238 + ... + 17309263.

It is an arithmetic number, because the mean of its divisors is an integer number (121164757).

Almost surely, 2^450040513 is an apocalyptic number.

It is an amenable number.

450040513 is a deficient number, since it is larger than the sum of its proper divisors (34618515).

450040513 is a wasteful number, since it uses less digits than its factorization.

450040513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34618514.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 450040513 is about 21214.1583146728. The cubic root of 450040513 is about 766.3324283657.

Adding to 450040513 its reverse (315040054), we get a palindrome (765080567).

The spelling of 450040513 in words is "four hundred fifty million, forty thousand, five hundred thirteen".