3221924644 has 27 divisors (see below), whose sum is σ = 5715084403. Its totient is φ = 1589336000.

The previous prime is 3221924611. The next prime is 3221924653. The reversal of 3221924644 is 4464291223.

The square root of 3221924644 is 56762.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1547478244 + 1674446400 = 39338^2 + 40920^2 .

It is a super-2 number, since 2×3221924644² = 20761596823229053472, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (82944) is a multiple of the sum of its prime divisors (384).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11465784 + ... + 11466064.

Almost surely, 2^3221924644 is an apocalyptic number.

3221924644 is the 56762-nd square number.

It is an amenable number.

3221924644 is a deficient number, since it is larger than the sum of its proper divisors (2493159759).

3221924644 is an equidigital number, since it uses as much as digits as its factorization.

3221924644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 384 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The cubic root of 3221924644 is about 1476.9704041094.

Multiplying 3221924644 by its product of digits (82944), we get a square (267239317671936 = 16347456²).

It can be divided in two parts, 322192 and 4644, that added together give a triangular number (326836 = T₈₀₈).

The spelling of 3221924644 in words is "three billion, two hundred twenty-one million, nine hundred twenty-four thousand, six hundred forty-four".