630378 has 24 divisors (see below), whose sum is σ = 1561248. Its totient is φ = 180072.

The previous prime is 630353. The next prime is 630391. The reversal of 630378 is 873036.

It is a happy number.

It is an Ulam number.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 2376 + ... + 2627.

It is an arithmetic number, because the mean of its divisors is an integer number (65052).

2⁶³⁰³⁷⁸ is an apocalyptic number.

630378 is an abundant number, since it is smaller than the sum of its proper divisors (930870).

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

630378 is a wasteful number, since it uses less digits than its factorization.

630378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018 (or 5015 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 630378 is about 793.9634752304. The cubic root of 630378 is about 85.7433306330.

The spelling of 630378 in words is "six hundred thirty thousand, three hundred seventy-eight".