630448 has 40 divisors (see below), whose sum is σ = 1506848. Its totient is φ = 248832.

The previous prime is 630433. The next prime is 630451. The reversal of 630448 is 844036.

630448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1240 + ... + 1672.

2⁶³⁰⁴⁴⁸ 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 630448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (753424).

630448 is an abundant number, since it is smaller than the sum of its proper divisors (876400).

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

630448 is a wasteful number, since it uses less digits than its factorization.

630448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 630448 is about 794.0075566391. The cubic root of 630448 is about 85.7465042902.

The spelling of 630448 in words is "six hundred thirty thousand, four hundred forty-eight".