3189992 has 32 divisors (see below), whose sum is σ = 6623400. Its totient is φ = 1430784.

The previous prime is 3189983. The next prime is 3189997. The reversal of 3189992 is 2999813.

It can be written as a sum of positive squares in 4 ways, for example, as 2869636 + 320356 = 1694^2 + 566^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3189997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3434 + ... + 4262.

Almost surely, 2^3189992 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 3189992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3311700).

3189992 is an abundant number, since it is smaller than the sum of its proper divisors (3433408).

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

3189992 is a wasteful number, since it uses less digits than its factorization.

3189992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 881 counting only the distinct ones).

The product of its digits is 34992, while the sum is 41.

The square root of 3189992 is about 1786.0548703777. The cubic root of 3189992 is about 147.2074754001.

The spelling of 3189992 in words is "three million, one hundred eighty-nine thousand, nine hundred ninety-two".