3331721832 has 64 divisors (see below), whose sum is σ = 8630383680. Its totient is φ = 1070963712.

The previous prime is 3331721831. The next prime is 3331721837. The reversal of 3331721832 is 2381271333.

It is a super-2 number, since 2×3331721832² = 22200740731650872448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3331721793 and 3331721802.

It is not an unprimeable number, because it can be changed into a prime (3331721831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83743 + ... + 116945.

It is an arithmetic number, because the mean of its divisors is an integer number (134849745).

Almost surely, 2^3331721832 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 3331721832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4315191840).

3331721832 is an abundant number, since it is smaller than the sum of its proper divisors (5298661848).

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

3331721832 is a wasteful number, since it uses less digits than its factorization.

3331721832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33362 (or 33358 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 3331721832 is about 57721.0692208660. The cubic root of 3331721832 is about 1493.5608170581.

The spelling of 3331721832 in words is "three billion, three hundred thirty-one million, seven hundred twenty-one thousand, eight hundred thirty-two".