938840640 has 112 divisors (see below), whose sum is σ = 3156216192. Its totient is φ = 235626496.

The previous prime is 938840603. The next prime is 938840659. The reversal of 938840640 is 46048839.

938840640 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 = 938840592 and 938840601.

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, 12444 + ... + 45083.

Almost surely, 2^938840640 is an apocalyptic number.

It is an amenable number.

938840640 is an abundant number, since it is smaller than the sum of its proper divisors (2217375552).

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

938840640 is a wasteful number, since it uses less digits than its factorization.

938840640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57564 (or 57554 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 938840640 is about 30640.5065232284. The cubic root of 938840640 is about 979.1832150354.

The spelling of 938840640 in words is "nine hundred thirty-eight million, eight hundred forty thousand, six hundred forty".