630078390 has 48 divisors (see below), whose sum is σ = 1643511168. Its totient is φ = 167476608.

The previous prime is 630078313. The next prime is 630078391. The reversal of 630078390 is 93870036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630078391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16987 + ... + 39353.

It is an arithmetic number, because the mean of its divisors is an integer number (34239816).

Almost surely, 2^630078390 is an apocalyptic number.

630078390 is an abundant number, since it is smaller than the sum of its proper divisors (1013432778).

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

630078390 is a wasteful number, since it uses less digits than its factorization.

630078390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22693 (or 22690 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 630078390 is about 25101.3623136275. The cubic root of 630078390 is about 857.2974427141.

The spelling of 630078390 in words is "six hundred thirty million, seventy-eight thousand, three hundred ninety".