663852444 has 48 divisors (see below), whose sum is σ = 1561610400. Its totient is φ = 219490560.

The previous prime is 663852439. The next prime is 663852461. The reversal of 663852444 is 444258366.

663852444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 663852396 and 663852405.

It is a congruent number.

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, 1226814 + ... + 1227354.

It is an arithmetic number, because the mean of its divisors is an integer number (32533550).

Almost surely, 2^663852444 is an apocalyptic number.

It is an amenable number.

663852444 is an abundant number, since it is smaller than the sum of its proper divisors (897757956).

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

663852444 is a wasteful number, since it uses less digits than its factorization.

663852444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1188 counting only the distinct ones).

The product of its digits is 552960, while the sum is 42.

The square root of 663852444 is about 25765.3341526944. The cubic root of 663852444 is about 872.3495060396.

The spelling of 663852444 in words is "six hundred sixty-three million, eight hundred fifty-two thousand, four hundred forty-four".