630307245 has 8 divisors (see below), whose sum is σ = 1008491616. Its totient is φ = 336163856.

The previous prime is 630307241. The next prime is 630307253. The reversal of 630307245 is 542703036.

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

It is a cyclic number.

It is not a de Polignac number, because 630307245 - 2² = 630307241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630307241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21010227 + ... + 21010256.

It is an arithmetic number, because the mean of its divisors is an integer number (126061452).

Almost surely, 2^630307245 is an apocalyptic number.

It is an amenable number.

630307245 is a deficient number, since it is larger than the sum of its proper divisors (378184371).

630307245 is a wasteful number, since it uses less digits than its factorization.

630307245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42020491.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 630307245 is about 25105.9205168821. The cubic root of 630307245 is about 857.4012250689.

The spelling of 630307245 in words is "six hundred thirty million, three hundred seven thousand, two hundred forty-five".