630422 has 8 divisors (see below), whose sum is σ = 1018416. Its totient is φ = 290952.

The previous prime is 630391. The next prime is 630433. The reversal of 630422 is 224036.

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 630422.

It is a congruent number.

It is an unprimeable 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, 12098 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (127302).

2⁶³⁰⁴²² is an apocalyptic number.

630422 is a deficient number, since it is larger than the sum of its proper divisors (387994).

630422 is a wasteful number, since it uses less digits than its factorization.

630422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24262.

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

The square root of 630422 is about 793.9911838301. The cubic root of 630422 is about 85.7453255306.

Adding to 630422 its reverse (224036), we get a palindrome (854458).

The spelling of 630422 in words is "six hundred thirty thousand, four hundred twenty-two".