663241730 has 32 divisors (see below), whose sum is σ = 1203724800. Its totient is φ = 263109952.

The previous prime is 663241729. The next prime is 663241751. The reversal of 663241730 is 37142366.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857624 + ... + 858396.

It is an arithmetic number, because the mean of its divisors is an integer number (37616400).

Almost surely, 2^663241730 is an apocalyptic number.

663241730 is a deficient number, since it is larger than the sum of its proper divisors (540483070).

663241730 is a wasteful number, since it uses less digits than its factorization.

663241730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 663241730 is about 25753.4799590269. The cubic root of 663241730 is about 872.0819167005.

The spelling of 663241730 in words is "six hundred sixty-three million, two hundred forty-one thousand, seven hundred thirty".