630325905 has 24 divisors (see below), whose sum is σ = 1108543296. Its totient is φ = 305611680.

The previous prime is 630325897. The next prime is 630325939. The reversal of 630325905 is 509523036.

It is not a de Polignac number, because 630325905 - 2³ = 630325897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171829 + ... + 175458.

It is an arithmetic number, because the mean of its divisors is an integer number (46189304).

Almost surely, 2^630325905 is an apocalyptic number.

It is an amenable number.

630325905 is a deficient number, since it is larger than the sum of its proper divisors (478217391).

630325905 is a wasteful number, since it uses less digits than its factorization.

630325905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347317 (or 347306 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 33.

The square root of 630325905 is about 25106.2921396211. The cubic root of 630325905 is about 857.4096859949.

The spelling of 630325905 in words is "six hundred thirty million, three hundred twenty-five thousand, nine hundred five".