3406945189 has 4 divisors (see below), whose sum is σ = 3411632224. Its totient is φ = 3402258156.

The previous prime is 3406945133. The next prime is 3406945247. The reversal of 3406945189 is 9815496043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3406945189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3406945489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342427 + ... + 2343880.

It is an arithmetic number, because the mean of its divisors is an integer number (852908056).

Almost surely, 2^3406945189 is an apocalyptic number.

It is an amenable number.

3406945189 is a deficient number, since it is larger than the sum of its proper divisors (4687035).

3406945189 is an equidigital number, since it uses as much as digits as its factorization.

3406945189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4687034.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 3406945189 is about 58369.0430707922. The cubic root of 3406945189 is about 1504.7177668205.

The spelling of 3406945189 in words is "three billion, four hundred six million, nine hundred forty-five thousand, one hundred eighty-nine".