630358016 has 32 divisors (see below), whose sum is σ = 1260762330. Its totient is φ = 315162624.

The previous prime is 630357997. The next prime is 630358049. The reversal of 630358016 is 610853036.

It can be written as a sum of positive squares in only one way, i.e., 610287616 + 20070400 = 24704^2 + 4480^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23150 + ... + 42386.

Almost surely, 2^630358016 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 630358016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630381165).

630358016 is an abundant number, since it is smaller than the sum of its proper divisors (630404314).

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

630358016 is an frugal number, since it uses more digits than its factorization.

630358016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19267 (or 19239 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 630358016 is about 25106.9316325193. The cubic root of 630358016 is about 857.4242455610.

The spelling of 630358016 in words is "six hundred thirty million, three hundred fifty-eight thousand, sixteen".