3921344 has 28 divisors (see below), whose sum is σ = 8894064. Its totient is φ = 1680384.

The previous prime is 3921343. The next prime is 3921347. The reversal of 3921344 is 4431293.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3921343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3929 + ... + 4824.

Almost surely, 2^3921344 is an apocalyptic number.

It is an amenable number.

3921344 is an abundant number, since it is smaller than the sum of its proper divisors (4972720).

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

3921344 is an equidigital number, since it uses as much as digits as its factorization.

3921344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8772 (or 8762 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 3921344 is about 1980.2383694899. The cubic root of 3921344 is about 157.6927211692.

The spelling of 3921344 in words is "three million, nine hundred twenty-one thousand, three hundred forty-four".