450645 has 16 divisors (see below), whose sum is σ = 776832. Its totient is φ = 221760.

The previous prime is 450643. The next prime is 450649. The reversal of 450645 is 546054.

It is not a de Polignac number, because 450645 - 2¹ = 450643 is a prime.

450645 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961 + ... + 1350.

It is an arithmetic number, because the mean of its divisors is an integer number (48552).

2⁴⁵⁰⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

450645 is a deficient number, since it is larger than the sum of its proper divisors (326187).

450645 is a wasteful number, since it uses less digits than its factorization.

450645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 450645 is about 671.3009757180. The cubic root of 450645 is about 76.6675383224.

Adding to 450645 its reverse (546054), we get a palindrome (996699).

The spelling of 450645 in words is "four hundred fifty thousand, six hundred forty-five".