663240272 has 20 divisors (see below), whose sum is σ = 1316371476. Its totient is φ = 323531520.

The previous prime is 663240269. The next prime is 663240289. The reversal of 663240272 is 272042366.

It can be written as a sum of positive squares in 2 ways, for example, as 107412496 + 555827776 = 10364^2 + 23576^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 504863 + ... + 506174.

Almost surely, 2^663240272 is an apocalyptic number.

It is an amenable number.

663240272 is a deficient number, since it is larger than the sum of its proper divisors (653131204).

663240272 is a wasteful number, since it uses less digits than its factorization.

663240272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011086 (or 1011080 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 663240272 is about 25753.4516521572. The cubic root of 663240272 is about 872.0812776694.

The spelling of 663240272 in words is "six hundred sixty-three million, two hundred forty thousand, two hundred seventy-two".