3191421006 has 32 divisors (see below), whose sum is σ = 7094430720. Its totient is φ = 1063449432.

The previous prime is 3191421001. The next prime is 3191421019. The reversal of 3191421006 is 6001241913.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3191421001) 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 15 ways as a sum of consecutive naturals, for example, 188611 + ... + 204833.

It is an arithmetic number, because the mean of its divisors is an integer number (221700960).

Almost surely, 2^3191421006 is an apocalyptic number.

3191421006 is an abundant number, since it is smaller than the sum of its proper divisors (3903009714).

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

3191421006 is a wasteful number, since it uses less digits than its factorization.

3191421006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19877 (or 19871 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 3191421006 is about 56492.6632935641. The cubic root of 3191421006 is about 1472.2945340322.

Adding to 3191421006 its reverse (6001241913), we get a palindrome (9192662919).

The spelling of 3191421006 in words is "three billion, one hundred ninety-one million, four hundred twenty-one thousand, six".