630270 has 48 divisors (see below), whose sum is σ = 1684800. Its totient is φ = 163392.

The previous prime is 630263. The next prime is 630281. The reversal of 630270 is 72036.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4156 + ... + 4304.

It is an arithmetic number, because the mean of its divisors is an integer number (35100).

2⁶³⁰²⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842400).

630270 is an abundant number, since it is smaller than the sum of its proper divisors (1054530).

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

630270 is a wasteful number, since it uses less digits than its factorization.

630270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 630270 is about 793.8954591128. The cubic root of 630270 is about 85.7384336724.

It can be divided in two parts, 630 and 270, that added together give a square (900 = 30²).

The spelling of 630270 in words is "six hundred thirty thousand, two hundred seventy".