630560 has 48 divisors (see below), whose sum is σ = 1705536. Its totient is φ = 215808.

The previous prime is 630559. The next prime is 630577. The reversal of 630560 is 65036.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839 + ... + 1401.

It is an arithmetic number, because the mean of its divisors is an integer number (35532).

2⁶³⁰⁵⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (852768).

630560 is an abundant number, since it is smaller than the sum of its proper divisors (1074976).

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

630560 is a wasteful number, since it uses less digits than its factorization.

630560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 630560 is about 794.0780818030. The cubic root of 630560 is about 85.7515816531.

Adding to 630560 its reverse (65036), we get a palindrome (695596).

The spelling of 630560 in words is "six hundred thirty thousand, five hundred sixty".