663373452 has 96 divisors (see below), whose sum is σ = 1853494272. Its totient is φ = 180550656.

The previous prime is 663373441. The next prime is 663373453. The reversal of 663373452 is 254373366.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 663373452.

It is not an unprimeable number, because it can be changed into a prime (663373453) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 604168 + ... + 605264.

It is an arithmetic number, because the mean of its divisors is an integer number (19307232).

Almost surely, 2^663373452 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 663373452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926747136).

663373452 is an abundant number, since it is smaller than the sum of its proper divisors (1190120820).

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

663373452 is a wasteful number, since it uses less digits than its factorization.

663373452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447 (or 1445 counting only the distinct ones).

The product of its digits is 272160, while the sum is 39.

The square root of 663373452 is about 25756.0371951898. The cubic root of 663373452 is about 872.1396456628.

The spelling of 663373452 in words is "six hundred sixty-three million, three hundred seventy-three thousand, four hundred fifty-two".