630860040 has 192 divisors, whose sum is σ = 2176200000. Its totient is φ = 158049792.

The previous prime is 630860011. The next prime is 630860047. The reversal of 630860040 is 40068036.

It is a junction number, because it is equal to n+sod(n) for n = 630859986 and 630860013.

It is not an unprimeable number, because it can be changed into a prime (630860047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1018851 + ... + 1019469.

It is an arithmetic number, because the mean of its divisors is an integer number (11334375).

Almost surely, 2^630860040 is an apocalyptic number.

630860040 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 630860040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088100000).

630860040 is an abundant number, since it is smaller than the sum of its proper divisors (1545339960).

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

630860040 is a wasteful number, since it uses less digits than its factorization.

630860040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 630860040 is about 25116.9273598504. The cubic root of 630860040 is about 857.6518058352.

The spelling of 630860040 in words is "six hundred thirty million, eight hundred sixty thousand, forty".