630998148 has 48 divisors (see below), whose sum is σ = 1649600064. Its totient is φ = 186042240.

The previous prime is 630998141. The next prime is 630998177. The reversal of 630998148 is 841899036.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 630998097 and 630998106.

It is not an unprimeable number, because it can be changed into a prime (630998141) 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 15 ways as a sum of consecutive naturals, for example, 59715 + ... + 69482.

It is an arithmetic number, because the mean of its divisors is an integer number (34366668).

Almost surely, 2^630998148 is an apocalyptic number.

It is an amenable number.

630998148 is an abundant number, since it is smaller than the sum of its proper divisors (1018601916).

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

630998148 is a wasteful number, since it uses less digits than its factorization.

630998148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129252 (or 129250 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 630998148 is about 25119.6765106559. The cubic root of 630998148 is about 857.7143870342.

The spelling of 630998148 in words is "six hundred thirty million, nine hundred ninety-eight thousand, one hundred forty-eight".