4443648 has 80 divisors (see below), whose sum is σ = 12963456. Its totient is φ = 1341440.

The previous prime is 4443631. The next prime is 4443653. The reversal of 4443648 is 8463444.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16765 + ... + 17027.

Almost surely, 2^4443648 is an apocalyptic number.

4443648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4443648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6481728).

4443648 is an abundant number, since it is smaller than the sum of its proper divisors (8519808).

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

4443648 is a wasteful number, since it uses less digits than its factorization.

4443648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 279 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

The square root of 4443648 is about 2107.9962049302. The cubic root of 4443648 is about 164.4043166975.

The spelling of 4443648 in words is "four million, four hundred forty-three thousand, six hundred forty-eight".