3213821382 has 16 divisors (see below), whose sum is σ = 6435313920. Its totient is φ = 1069995272.

The previous prime is 3213821371. The next prime is 3213821399. The reversal of 3213821382 is 2831283123.

It is a congruent number.

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, 314178 + ... + 324245.

It is an arithmetic number, because the mean of its divisors is an integer number (402207120).

Almost surely, 2^3213821382 is an apocalyptic number.

3213821382 is an abundant number, since it is smaller than the sum of its proper divisors (3221492538).

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

3213821382 is a wasteful number, since it uses less digits than its factorization.

3213821382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639267.

The product of its digits is 13824, while the sum is 33.

The square root of 3213821382 is about 56690.5757776370. The cubic root of 3213821382 is about 1475.7311525156.

It can be divided in two parts, 3 and 213821382, that multiplied together give a palindrome (641464146).

The spelling of 3213821382 in words is "three billion, two hundred thirteen million, eight hundred twenty-one thousand, three hundred eighty-two".