938968440 has 64 divisors (see below), whose sum is σ = 2821824000. Its totient is φ = 249954432.

The previous prime is 938968427. The next prime is 938968447. The reversal of 938968440 is 44869839.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938968447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65349 + ... + 78411.

It is an arithmetic number, because the mean of its divisors is an integer number (44091000).

Almost surely, 2^938968440 is an apocalyptic number.

It is an amenable number.

938968440 is an abundant number, since it is smaller than the sum of its proper divisors (1882855560).

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

938968440 is a wasteful number, since it uses less digits than its factorization.

938968440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13676 (or 13672 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 938968440 is about 30642.5919269242. The cubic root of 938968440 is about 979.2276435685.

The spelling of 938968440 in words is "nine hundred thirty-eight million, nine hundred sixty-eight thousand, four hundred forty".