630320406 has 8 divisors (see below), whose sum is σ = 1260640824. Its totient is φ = 210106800.

The previous prime is 630320399. The next prime is 630320447. The reversal of 630320406 is 604023036.

630320406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

630320406 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent 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, 52526695 + ... + 52526706.

It is an arithmetic number, because the mean of its divisors is an integer number (157580103).

Almost surely, 2^630320406 is an apocalyptic number.

630320406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

630320406 is a wasteful number, since it uses less digits than its factorization.

630320406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105053406.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 630320406 is about 25106.1826250029. The cubic root of 630320406 is about 857.4071926236.

The spelling of 630320406 in words is "six hundred thirty million, three hundred twenty thousand, four hundred six".