630390 has 16 divisors (see below), whose sum is σ = 1513008. Its totient is φ = 168096.

The previous prime is 630353. The next prime is 630391. The reversal of 630390 is 93036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10477 + ... + 10536.

It is an arithmetic number, because the mean of its divisors is an integer number (94563).

2⁶³⁰³⁹⁰ is an apocalyptic number.

630390 is an abundant number, since it is smaller than the sum of its proper divisors (882618).

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

630390 is a wasteful number, since it uses less digits than its factorization.

630390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21023.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 630390 is about 793.9710322172. The cubic root of 630390 is about 85.7438747052.

The spelling of 630390 in words is "six hundred thirty thousand, three hundred ninety".