938981568 has 168 divisors, whose sum is σ = 2937881856. Its totient is φ = 259269120.

The previous prime is 938981551. The next prime is 938981581. The reversal of 938981568 is 865189839.

It is a tau number, because it is divible by the number of its divisors (168).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1291221 + ... + 1291947.

It is an arithmetic number, because the mean of its divisors is an integer number (17487392).

Almost surely, 2^938981568 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 938981568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468940928).

938981568 is an abundant number, since it is smaller than the sum of its proper divisors (1998900288).

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

938981568 is a wasteful number, since it uses less digits than its factorization.

938981568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 770 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 57.

The square root of 938981568 is about 30642.8061378197. The cubic root of 938981568 is about 979.2322071725.

The spelling of 938981568 in words is "nine hundred thirty-eight million, nine hundred eighty-one thousand, five hundred sixty-eight".