663383140 has 24 divisors (see below), whose sum is σ = 1592119872. Its totient is φ = 227445600.

The previous prime is 663383117. The next prime is 663383141. The reversal of 663383140 is 41383366.

It is a junction number, because it is equal to n+sod(n) for n = 663383096 and 663383105.

It is not an unprimeable number, because it can be changed into a prime (663383141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2369086 + ... + 2369365.

It is an arithmetic number, because the mean of its divisors is an integer number (66338328).

Almost surely, 2^663383140 is an apocalyptic number.

It is an amenable number.

663383140 is an abundant number, since it is smaller than the sum of its proper divisors (928736732).

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

663383140 is a wasteful number, since it uses less digits than its factorization.

663383140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738467 (or 4738465 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 663383140 is about 25756.2252669136. The cubic root of 663383140 is about 872.1438912591.

The spelling of 663383140 in words is "six hundred sixty-three million, three hundred eighty-three thousand, one hundred forty".