630299616 has 96 divisors (see below), whose sum is σ = 1844156160. Its totient is φ = 187324416.

The previous prime is 630299609. The next prime is 630299627. The reversal of 630299616 is 616992036.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20845 + ... + 41171.

It is an arithmetic number, because the mean of its divisors is an integer number (19209960).

Almost surely, 2^630299616 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 630299616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (922078080).

630299616 is an abundant number, since it is smaller than the sum of its proper divisors (1213856544).

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

630299616 is a wasteful number, since it uses less digits than its factorization.

630299616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20376 (or 20368 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 630299616 is about 25105.7685801491. The cubic root of 630299616 is about 857.3977658351.

The spelling of 630299616 in words is "six hundred thirty million, two hundred ninety-nine thousand, six hundred sixteen".