938841813 has 192 divisors, whose sum is σ = 1953504000. Its totient is φ = 441552384.

The previous prime is 938841791. The next prime is 938841829. The reversal of 938841813 is 318148839.

It is not a de Polignac number, because 938841813 - 2⁵ = 938841781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938841863) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 49412718 + ... + 49412736.

It is an arithmetic number, because the mean of its divisors is an integer number (10174500).

Almost surely, 2^938841813 is an apocalyptic number.

It is an amenable number.

938841813 is an abundant number, since it is smaller than the sum of its proper divisors (1014662187).

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

938841813 is a wasteful number, since it uses less digits than its factorization.

938841813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 59 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 938841813 is about 30640.5256645509. The cubic root of 938841813 is about 979.1836228368.

The spelling of 938841813 in words is "nine hundred thirty-eight million, eight hundred forty-one thousand, eight hundred thirteen".