630342720 has 168 divisors, whose sum is σ = 2477926464. Its totient is φ = 144073728.

The previous prime is 630342701. The next prime is 630342721. The reversal of 630342720 is 27243036.

630342720 is a `hidden beast` number, since 630 + 3 + 4 + 2 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is not an unprimeable number, because it can be changed into a prime (630342721) 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, 4527 + ... + 35793.

Almost surely, 2^630342720 is an apocalyptic number.

630342720 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 630342720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238963232).

630342720 is an abundant number, since it is smaller than the sum of its proper divisors (1847583744).

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

630342720 is a wasteful number, since it uses less digits than its factorization.

630342720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31297 (or 31284 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 630342720 is about 25106.6270135994. The cubic root of 630342720 is about 857.4173102073.

Adding to 630342720 its reverse (27243036), we get a palindrome (657585756).

The spelling of 630342720 in words is "six hundred thirty million, three hundred forty-two thousand, seven hundred twenty".