630315405 has 64 divisors (see below), whose sum is σ = 1217740800. Its totient is φ = 308162880.

The previous prime is 630315403. The next prime is 630315407. The reversal of 630315405 is 504513036.

630315405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (630315403) and next prime (630315407).

It is not a de Polignac number, because 630315405 - 2¹ = 630315403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630315403) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 75552 + ... + 83478.

It is an arithmetic number, because the mean of its divisors is an integer number (19027200).

Almost surely, 2^630315405 is an apocalyptic number.

It is an amenable number.

630315405 is a deficient number, since it is larger than the sum of its proper divisors (587425395).

630315405 is a wasteful number, since it uses less digits than its factorization.

630315405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7991 (or 7985 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 630315405 is about 25106.0830278242. The cubic root of 630315405 is about 857.4049250442.

The spelling of 630315405 in words is "six hundred thirty million, three hundred fifteen thousand, four hundred five".