630322560 has 448 divisors, whose sum is σ = 2595394080. Its totient is φ = 143327232.

The previous prime is 630322543. The next prime is 630322571. The reversal of 630322560 is 65223036.

630322560 is a `hidden beast` number, since 630 + 3 + 2 + 25 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 3265824 + ... + 3266016.

Almost surely, 2^630322560 is an apocalyptic number.

630322560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630322560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1297697040).

630322560 is an abundant number, since it is smaller than the sum of its proper divisors (1965071520).

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

630322560 is an equidigital number, since it uses as much as digits as its factorization.

630322560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 630322560 is about 25106.2255227663. The cubic root of 630322560 is about 857.4081692978.

Adding to 630322560 its reverse (65223036), we get a palindrome (695545596).

The spelling of 630322560 in words is "six hundred thirty million, three hundred twenty-two thousand, five hundred sixty".