938864928 has 24 divisors (see below), whose sum is σ = 2464520688. Its totient is φ = 312954944.

The previous prime is 938864921. The next prime is 938864957. The reversal of 938864928 is 829468839.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-4 number, since 4×938864928⁴ (a number of 37 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (938864921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4889826 + ... + 4890017.

It is an arithmetic number, because the mean of its divisors is an integer number (102688362).

Almost surely, 2^938864928 is an apocalyptic number.

It is an amenable number.

938864928 is an abundant number, since it is smaller than the sum of its proper divisors (1525655760).

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

938864928 is a wasteful number, since it uses less digits than its factorization.

938864928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9779856 (or 9779848 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 57.

The square root of 938864928 is about 30640.9028587605. The cubic root of 938864928 is about 979.1916588529.

The spelling of 938864928 in words is "nine hundred thirty-eight million, eight hundred sixty-four thousand, nine hundred twenty-eight".