630242 has 8 divisors (see below), whose sum is σ = 951132. Its totient is φ = 313200.

The previous prime is 630229. The next prime is 630247. The reversal of 630242 is 242036.

It can be written as a sum of positive squares in 2 ways, for example, as 358801 + 271441 = 599^2 + 521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 630242.

It is not an unprimeable number, because it can be changed into a prime (630247) by changing a digit.

630242 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 509 + ... + 1232.

2⁶³⁰²⁴² is an apocalyptic number.

630242 is a deficient number, since it is larger than the sum of its proper divisors (320890).

630242 is a wasteful number, since it uses less digits than its factorization.

630242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 630242 is about 793.8778243533. The cubic root of 630242 is about 85.7371639988.

Adding to 630242 its reverse (242036), we get a palindrome (872278).

The spelling of 630242 in words is "six hundred thirty thousand, two hundred forty-two".