630358 has 4 divisors (see below), whose sum is σ = 945540. Its totient is φ = 315178.

The previous prime is 630353. The next prime is 630391. The reversal of 630358 is 853036.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630353) by changing a digit.

630358 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 as a sum of consecutive naturals, namely, 157588 + ... + 157591.

It is an arithmetic number, because the mean of its divisors is an integer number (236385).

2⁶³⁰³⁵⁸ is an apocalyptic number.

630358 is a deficient number, since it is larger than the sum of its proper divisors (315182).

630358 is a wasteful number, since it uses less digits than its factorization.

630358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315181.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 630358 is about 793.9508800927. The cubic root of 630358 is about 85.7424238306.

The spelling of 630358 in words is "six hundred thirty thousand, three hundred fifty-eight".