938945040 has 160 divisors (see below), whose sum is σ = 3342643200. Its totient is φ = 215631360.

The previous prime is 938945039. The next prime is 938945069. The reversal of 938945040 is 40549839.

It is a junction number, because it is equal to n+sod(n) for n = 938944983 and 938945001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40801 + ... + 59519.

It is an arithmetic number, because the mean of its divisors is an integer number (20891520).

Almost surely, 2^938945040 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 938945040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1671321600).

938945040 is an abundant number, since it is smaller than the sum of its proper divisors (2403698160).

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

938945040 is a wasteful number, since it uses less digits than its factorization.

938945040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18765 (or 18759 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 938945040 is about 30642.2101030588. The cubic root of 938945040 is about 979.2195090681.

The spelling of 938945040 in words is "nine hundred thirty-eight million, nine hundred forty-five thousand, forty".