383539968 has 144 divisors (see below), whose sum is σ = 1296386560. Its totient is φ = 109569024.

The previous prime is 383539939. The next prime is 383539969. The reversal of 383539968 is 869935383.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383539969) 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 15 ways as a sum of consecutive naturals, for example, 44421 + ... + 52347.

Almost surely, 2^383539968 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 383539968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648193280).

383539968 is an abundant number, since it is smaller than the sum of its proper divisors (912846592).

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

383539968 is an equidigital number, since it uses as much as digits as its factorization.

383539968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7959 (or 7939 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 383539968 is about 19584.1764697932. The cubic root of 383539968 is about 726.5578664179.

The spelling of 383539968 in words is "three hundred eighty-three million, five hundred thirty-nine thousand, nine hundred sixty-eight".