630148428 has 108 divisors (see below), whose sum is σ = 1995542640. Its totient is φ = 166186944.

The previous prime is 630148403. The next prime is 630148481. The reversal of 630148428 is 824841036.

630148428 is a `hidden beast` number, since 630 + 14 + 8 + 4 + 2 + 8 = 666.

630148428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 630148392 and 630148401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9193 + ... + 36671.

Almost surely, 2^630148428 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 630148428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997771320).

630148428 is an abundant number, since it is smaller than the sum of its proper divisors (1365394212).

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

630148428 is a wasteful number, since it uses less digits than its factorization.

630148428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27516 (or 27504 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 630148428 is about 25102.7573784236. The cubic root of 630148428 is about 857.3292065785.

The spelling of 630148428 in words is "six hundred thirty million, one hundred forty-eight thousand, four hundred twenty-eight".