663304124 has 48 divisors (see below), whose sum is σ = 1384689600. Its totient is φ = 272004096.

The previous prime is 663304123. The next prime is 663304129. The reversal of 663304124 is 421403366.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663304123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88142 + ... + 95370.

It is an arithmetic number, because the mean of its divisors is an integer number (28847700).

Almost surely, 2^663304124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663304124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692344800).

663304124 is an abundant number, since it is smaller than the sum of its proper divisors (721385476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663304124 is a wasteful number, since it uses less digits than its factorization.

663304124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7382 (or 7380 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 663304124 is about 25754.6913008096. The cubic root of 663304124 is about 872.1092626743.

The spelling of 663304124 in words is "six hundred sixty-three million, three hundred four thousand, one hundred twenty-four".