3221553444 has 48 divisors (see below), whose sum is σ = 7754976768. Its totient is φ = 1040110848.

The previous prime is 3221553409. The next prime is 3221553473. The reversal of 3221553444 is 4443551223.

It is a super-2 number, since 2×3221553444² = 20756813185096522272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82744 + ... + 115280.

It is an arithmetic number, because the mean of its divisors is an integer number (161562016).

Almost surely, 2^3221553444 is an apocalyptic number.

It is an amenable number.

3221553444 is an abundant number, since it is smaller than the sum of its proper divisors (4533423324).

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

3221553444 is a wasteful number, since it uses less digits than its factorization.

3221553444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32804 (or 32802 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

The square root of 3221553444 is about 56758.7301126443. The cubic root of 3221553444 is about 1476.9136810291.

The spelling of 3221553444 in words is "three billion, two hundred twenty-one million, five hundred fifty-three thousand, four hundred forty-four".