630099888 has 160 divisors (see below), whose sum is σ = 1889879040. Its totient is φ = 178894080.

The previous prime is 630099887. The next prime is 630099889. The reversal of 630099888 is 888990036.

630099888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (630099887) and next prime (630099889).

It is a super-2 number, since 2×630099888² = 794051737715225088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 630099888.

It is not an unprimeable number, because it can be changed into a prime (630099887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1073131 + ... + 1073717.

It is an arithmetic number, because the mean of its divisors is an integer number (11811744).

Almost surely, 2^630099888 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 630099888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944939520).

630099888 is an abundant number, since it is smaller than the sum of its proper divisors (1259779152).

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

630099888 is a wasteful number, since it uses less digits than its factorization.

630099888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 630099888 is about 25101.7905337448. The cubic root of 630099888 is about 857.3071928082.

The spelling of 630099888 in words is "six hundred thirty million, ninety-nine thousand, eight hundred eighty-eight".