663030 has 48 divisors (see below), whose sum is σ = 1769040. Its totient is φ = 172224.

The previous prime is 663007. The next prime is 663031. The reversal of 663030 is 30366.

663030 is a `hidden beast` number, since 6 + 630 + 30 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 662994 and 663012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4701 + ... + 4839.

It is an arithmetic number, because the mean of its divisors is an integer number (36855).

2⁶⁶³⁰³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884520).

663030 is an abundant number, since it is smaller than the sum of its proper divisors (1106010).

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

663030 is a wasteful number, since it uses less digits than its factorization.

663030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 663030 is about 814.2665411277. The cubic root of 663030 is about 87.1989107122.

Adding to 663030 its reverse (30366), we get a palindrome (693396).

It can be divided in two parts, 6 and 63030, that added together give a palindrome (63036).

The spelling of 663030 in words is "six hundred sixty-three thousand, thirty".