3221888 has 16 divisors (see below), whose sum is σ = 6418860. Its totient is φ = 1610880.

The previous prime is 3221819. The next prime is 3221899. The reversal of 3221888 is 8881223.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 12458 + ... + 12713.

Almost surely, 2^3221888 is an apocalyptic number.

It is an amenable number.

3221888 is a deficient number, since it is larger than the sum of its proper divisors (3196972).

3221888 is an equidigital number, since it uses as much as digits as its factorization.

3221888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25185 (or 25173 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 3221888 is about 1794.9618380344. The cubic root of 3221888 is about 147.6964804733.

The spelling of 3221888 in words is "three million, two hundred twenty-one thousand, eight hundred eighty-eight".