939444 has 36 divisors (see below), whose sum is σ = 2413152. Its totient is φ = 284240.

The previous prime is 939443. The next prime is 939451. The reversal of 939444 is 444939.

It is a happy number.

It is a super-3 number, since 3×939444³ = 2487333080374921152, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 939444.

It is not an unprimeable number, because it can be changed into a prime (939443) 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 11 ways as a sum of consecutive naturals, for example, 1129 + ... + 1775.

It is an arithmetic number, because the mean of its divisors is an integer number (67032).

2⁹³⁹⁴⁴⁴ 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 939444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1206576).

939444 is an abundant number, since it is smaller than the sum of its proper divisors (1473708).

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

939444 is a wasteful number, since it uses less digits than its factorization.

939444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 663 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 939444 is about 969.2491939641. The cubic root of 939444 is about 97.9392932369.

The spelling of 939444 in words is "nine hundred thirty-nine thousand, four hundred forty-four".