939444121 has 18 divisors (see below), whose sum is σ = 1201209450. Its totient is φ = 732029760.

The previous prime is 939444083. The next prime is 939444137. The reversal of 939444121 is 121444939.

It can be written as a sum of positive squares in only one way, i.e., 685392400 + 254051721 = 26180^2 + 15939^2 .

It is not a de Polignac number, because 939444121 - 2¹⁵ = 939411353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (939448121) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 73296 + ... + 85153.

Almost surely, 2^939444121 is an apocalyptic number.

It is an amenable number.

939444121 is a deficient number, since it is larger than the sum of its proper divisors (261765329).

939444121 is a wasteful number, since it uses less digits than its factorization.

939444121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158485 (or 158467 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 939444121 is about 30650.3527059641. The cubic root of 939444121 is about 979.3929744177.

The spelling of 939444121 in words is "nine hundred thirty-nine million, four hundred forty-four thousand, one hundred twenty-one".