663242432 has 14 divisors (see below), whose sum is σ = 1316121828. Its totient is φ = 331621184.

The previous prime is 663242399. The next prime is 663242483. The reversal of 663242432 is 234242366.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5181518 + ... + 5181645.

It is an arithmetic number, because the mean of its divisors is an integer number (94008702).

Almost surely, 2^663242432 is an apocalyptic number.

It is an amenable number.

663242432 is a deficient number, since it is larger than the sum of its proper divisors (652879396).

663242432 is a wasteful number, since it uses less digits than its factorization.

663242432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10363175 (or 10363165 counting only the distinct ones).

The product of its digits is 41472, while the sum is 32.

The square root of 663242432 is about 25753.4935882493. The cubic root of 663242432 is about 872.0822243818.

Adding to 663242432 its reverse (234242366), we get a palindrome (897484798).

The spelling of 663242432 in words is "six hundred sixty-three million, two hundred forty-two thousand, four hundred thirty-two".