450270 has 24 divisors (see below), whose sum is σ = 1170936. Its totient is φ = 120048.

The previous prime is 450259. The next prime is 450277. The reversal of 450270 is 72054.

It is a happy number.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2412 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (48789).

2⁴⁵⁰²⁷⁰ is an apocalyptic number.

450270 is an abundant number, since it is smaller than the sum of its proper divisors (720666).

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

450270 is a wasteful number, since it uses less digits than its factorization.

450270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016 (or 5013 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 450270 is about 671.0216091900. The cubic root of 450270 is about 76.6462663638.

The spelling of 450270 in words is "four hundred fifty thousand, two hundred seventy".