630218474 has 8 divisors (see below), whose sum is σ = 947076708. Its totient is φ = 314526240.

The previous prime is 630218431. The next prime is 630218497. The reversal of 630218474 is 474812036.

630218474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 624250225 + 5968249 = 24985^2 + 2443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290147 + ... + 292310.

Almost surely, 2^630218474 is an apocalyptic number.

630218474 is a deficient number, since it is larger than the sum of its proper divisors (316858234).

630218474 is a wasteful number, since it uses less digits than its factorization.

630218474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583000.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 630218474 is about 25104.1525250306. The cubic root of 630218474 is about 857.3609717172.

The spelling of 630218474 in words is "six hundred thirty million, two hundred eighteen thousand, four hundred seventy-four".