939228 has 48 divisors (see below), whose sum is σ = 2370816. Its totient is φ = 288640.

The previous prime is 939203. The next prime is 939229. The reversal of 939228 is 822939.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 939228.

It is not an unprimeable number, because it can be changed into a prime (939229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11275 + ... + 11357.

It is an arithmetic number, because the mean of its divisors is an integer number (49392).

2⁹³⁹²²⁸ 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 939228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1185408).

939228 is an abundant number, since it is smaller than the sum of its proper divisors (1431588).

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

939228 is a wasteful number, since it uses less digits than its factorization.

939228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 152 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 939228 is about 969.1377611052. The cubic root of 939228 is about 97.9317864886.

The spelling of 939228 in words is "nine hundred thirty-nine thousand, two hundred twenty-eight".