306630232 has 8 divisors (see below), whose sum is σ = 574931700. Its totient is φ = 153315112.

The previous prime is 306630199. The next prime is 306630251. The reversal of 306630232 is 232036603.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 306630197 and 306630206.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19164382 + ... + 19164397.

Almost surely, 2^306630232 is an apocalyptic number.

It is an amenable number.

306630232 is a deficient number, since it is larger than the sum of its proper divisors (268301468).

306630232 is a wasteful number, since it uses less digits than its factorization.

306630232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38328785 (or 38328781 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 306630232 is about 17510.8604014766. The cubic root of 306630232 is about 674.3287204790.

Adding to 306630232 its reverse (232036603), we get a palindrome (538666835).

The spelling of 306630232 in words is "three hundred six million, six hundred thirty thousand, two hundred thirty-two".