630912 has 64 divisors (see below), whose sum is σ = 1762560. Its totient is φ = 199680.

The previous prime is 630911. The next prime is 630919. The reversal of 630912 is 219036.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (630911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11878 + ... + 11930.

It is an arithmetic number, because the mean of its divisors is an integer number (27540).

2⁶³⁰⁹¹² is an apocalyptic number.

630912 is a gapful number since it is divisible by the number (62) 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 630912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881280).

630912 is an abundant number, since it is smaller than the sum of its proper divisors (1131648).

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

630912 is a wasteful number, since it uses less digits than its factorization.

630912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 630912 is about 794.2996915523. The cubic root of 630912 is about 85.7675351662.

Adding to 630912 its reverse (219036), we get a palindrome (849948).

The spelling of 630912 in words is "six hundred thirty thousand, nine hundred twelve".