630240609 has 16 divisors (see below), whose sum is σ = 901945152. Its totient is φ = 390025728.

The previous prime is 630240577. The next prime is 630240613. The reversal of 630240609 is 906042036.

It is not a de Polignac number, because 630240609 - 2⁵ = 630240577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630240619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80919 + ... + 88364.

It is an arithmetic number, because the mean of its divisors is an integer number (56371572).

Almost surely, 2^630240609 is an apocalyptic number.

It is an amenable number.

630240609 is a deficient number, since it is larger than the sum of its proper divisors (271704543).

630240609 is a wasteful number, since it uses less digits than its factorization.

630240609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169376.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 630240609 is about 25104.5933844785. The cubic root of 630240609 is about 857.3710092220.

The spelling of 630240609 in words is "six hundred thirty million, two hundred forty thousand, six hundred nine".