450128 has 20 divisors (see below), whose sum is σ = 996960. Its totient is φ = 192864.

The previous prime is 450127. The next prime is 450137. The reversal of 450128 is 821054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1898 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (49848).

2⁴⁵⁰¹²⁸ is an apocalyptic number.

It is an amenable number.

450128 is an abundant number, since it is smaller than the sum of its proper divisors (546832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450128 is a wasteful number, since it uses less digits than its factorization.

450128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034 (or 4028 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 450128 is about 670.9157920335. The cubic root of 450128 is about 76.6382082993.

It can be divided in two parts, 450 and 128, that multiplied together give a square (57600 = 240²).

The spelling of 450128 in words is "four hundred fifty thousand, one hundred twenty-eight".