450633685 has 4 divisors (see below), whose sum is σ = 540760428. Its totient is φ = 360506944.

The previous prime is 450633649. The next prime is 450633727. The reversal of 450633685 is 586336054.

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 195944004 + 254689681 = 13998^2 + 15959^2 .

It is a cyclic number.

It is not a de Polignac number, because 450633685 - 2²³ = 442245077 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 45063364 + ... + 45063373.

It is an arithmetic number, because the mean of its divisors is an integer number (135190107).

Almost surely, 2^450633685 is an apocalyptic number.

It is an amenable number.

450633685 is a deficient number, since it is larger than the sum of its proper divisors (90126743).

450633685 is an equidigital number, since it uses as much as digits as its factorization.

450633685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90126742.

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 450633685 is about 21228.1342797713. The cubic root of 450633685 is about 766.6689664917.

The spelling of 450633685 in words is "four hundred fifty million, six hundred thirty-three thousand, six hundred eighty-five".