450388 has 12 divisors (see below), whose sum is σ = 796180. Its totient is φ = 222912.

The previous prime is 450383. The next prime is 450391. The reversal of 450388 is 883054.

It can be written as a sum of positive squares in 2 ways, for example, as 386884 + 63504 = 622^2 + 252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450383) by changing a digit.

450388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81 + ... + 952.

2⁴⁵⁰³⁸⁸ is an apocalyptic number.

It is an amenable number.

450388 is a deficient number, since it is larger than the sum of its proper divisors (345792).

450388 is a wasteful number, since it uses less digits than its factorization.

450388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 450388 is about 671.1095290636. The cubic root of 450388 is about 76.6529612132.

It can be divided in two parts, 450 and 388, that added together give a palindrome (838).

The spelling of 450388 in words is "four hundred fifty thousand, three hundred eighty-eight".