3196843920 has 120 divisors (see below), whose sum is σ = 10842611832. Its totient is φ = 844032000.

The previous prime is 3196843861. The next prime is 3196843943. The reversal of 3196843920 is 293486913.

It is a happy number.

3196843920 is a `hidden beast` number, since 3 + 196 + 8 + 439 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1632483216 + 1564360704 = 40404^2 + 39552^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×3196843920² = 20439622097681932800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50740 + ... + 94700.

Almost surely, 2^3196843920 is an apocalyptic number.

3196843920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3196843920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5421305916).

3196843920 is an abundant number, since it is smaller than the sum of its proper divisors (7645767912).

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

3196843920 is a wasteful number, since it uses less digits than its factorization.

3196843920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44081 (or 44072 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 3196843920 is about 56540.6395436062. The cubic root of 3196843920 is about 1473.1279776756.

The spelling of 3196843920 in words is "three billion, one hundred ninety-six million, eight hundred forty-three thousand, nine hundred twenty".