3189390368 has 48 divisors (see below), whose sum is σ = 6394512600. Its totient is φ = 1565491200.

The previous prime is 3189390359. The next prime is 3189390431. The reversal of 3189390368 is 8630939813.

It can be written as a sum of positive squares in 4 ways, for example, as 3054551824 + 134838544 = 55268^2 + 11612^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249958 + ... + 1252506.

Almost surely, 2^3189390368 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 3189390368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3197256300).

3189390368 is an abundant number, since it is smaller than the sum of its proper divisors (3205122232).

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

3189390368 is a wasteful number, since it uses less digits than its factorization.

3189390368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261 (or 3253 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 3189390368 is about 56474.6878521697. The cubic root of 3189390368 is about 1471.9822038255.

The spelling of 3189390368 in words is "three billion, one hundred eighty-nine million, three hundred ninety thousand, three hundred sixty-eight".