450630 has 32 divisors (see below), whose sum is σ = 1202400. Its totient is φ = 120096.

The previous prime is 450617. The next prime is 450641. The reversal of 450630 is 36054.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565 + ... + 1104.

It is an arithmetic number, because the mean of its divisors is an integer number (37575).

2⁴⁵⁰⁶³⁰ is an apocalyptic number.

450630 is an abundant number, since it is smaller than the sum of its proper divisors (751770).

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

450630 is a wasteful number, since it uses less digits than its factorization.

450630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685 (or 1679 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 450630 is about 671.2898032892. The cubic root of 450630 is about 76.6666876707. Note that the first 4 decimals are identical.

Adding to 450630 its reverse (36054), we get a palindrome (486684).

The spelling of 450630 in words is "four hundred fifty thousand, six hundred thirty".