6624448 has 28 divisors (see below), whose sum is σ = 13304520. Its totient is φ = 3272192.

The previous prime is 6624439. The next prime is 6624463. The reversal of 6624448 is 8444266.

It is a happy number.

It is a super-2 number, since 2×6624448² = 87766622609408, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6⁵ + 6⁶ + 2⁵ + 4⁷ + 4⁹ + 4¹¹ + 8⁷ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5115 + ... + 6277.

Almost surely, 2^6624448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6624448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6652260).

6624448 is an abundant number, since it is smaller than the sum of its proper divisors (6680072).

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

6624448 is a wasteful number, since it uses less digits than its factorization.

6624448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264 (or 1254 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 6624448 is about 2573.8003030538. The cubic root of 6624448 is about 187.8090712901.

The spelling of 6624448 in words is "six million, six hundred twenty-four thousand, four hundred forty-eight".