3189942 has 80 divisors (see below), whose sum is σ = 8537760. Its totient is φ = 870912.

The previous prime is 3189899. The next prime is 3189943. The reversal of 3189942 is 2499813.

3189942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3189897 and 3189906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3189943) 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 39 ways as a sum of consecutive naturals, for example, 32838 + ... + 32934.

It is an arithmetic number, because the mean of its divisors is an integer number (106722).

Almost surely, 2^3189942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3189942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4268880).

3189942 is an abundant number, since it is smaller than the sum of its proper divisors (5347818).

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

3189942 is a wasteful number, since it uses less digits than its factorization.

3189942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 138 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 3189942 is about 1786.0408729926. The cubic root of 3189942 is about 147.2067062851.

The spelling of 3189942 in words is "three million, one hundred eighty-nine thousand, nine hundred forty-two".