630250000 has 70 divisors (see below), whose sum is σ = 1526972642. Its totient is φ = 252000000.

The previous prime is 630249877. The next prime is 630250001. The reversal of 630250000 is 52036.

It can be written as a sum of positive squares in 7 ways, for example, as 529368064 + 100881936 = 23008^2 + 10044^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (630250001) 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 13 ways as a sum of consecutive naturals, for example, 248740 + ... + 251260.

Almost surely, 2^630250000 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 630250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763486321).

630250000 is an abundant number, since it is smaller than the sum of its proper divisors (896722642).

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

630250000 is an frugal number, since it uses more digits than its factorization.

630250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559 (or 2528 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 630250000 is about 25104.7804212664. The cubic root of 630250000 is about 857.3752676650.

The spelling of 630250000 in words is "six hundred thirty million, two hundred fifty thousand".