630452 has 12 divisors (see below), whose sum is σ = 1109220. Its totient is φ = 313536.

The previous prime is 630451. The next prime is 630467. The reversal of 630452 is 254036.

It can be written as a sum of positive squares in 2 ways, for example, as 106276 + 524176 = 326^2 + 724^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630451) 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 3 ways as a sum of consecutive naturals, for example, 824 + ... + 1392.

It is an arithmetic number, because the mean of its divisors is an integer number (92435).

2⁶³⁰⁴⁵² is an apocalyptic number.

It is an amenable number.

630452 is a deficient number, since it is larger than the sum of its proper divisors (478768).

630452 is a wasteful number, since it uses less digits than its factorization.

630452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 630452 is about 794.0100755028. The cubic root of 630452 is about 85.7466856349.

Adding to 630452 its reverse (254036), we get a palindrome (884488).

The spelling of 630452 in words is "six hundred thirty thousand, four hundred fifty-two".