744448 has 22 divisors (see below), whose sum is σ = 1490216. Its totient is φ = 371712.

The previous prime is 744431. The next prime is 744451. The reversal of 744448 is 844447.

It is a super-3 number, since 3×744448³ = 1237725553335730176, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

744448 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 661 + ... + 1387.

2⁷⁴⁴⁴⁴⁸ 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 744448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745108).

744448 is an abundant number, since it is smaller than the sum of its proper divisors (745768).

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

744448 is an equidigital number, since it uses as much as digits as its factorization.

744448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 729 counting only the distinct ones).

The product of its digits is 14336, while the sum is 31.

The square root of 744448 is about 862.8140008136. The cubic root of 744448 is about 90.6312818475.

Subtracting 744448 from its reverse (844447), we obtain a palindrome (99999).

The spelling of 744448 in words is "seven hundred forty-four thousand, four hundred forty-eight".