744450 has 48 divisors (see below), whose sum is σ = 2112960. Its totient is φ = 169920.

The previous prime is 744431. The next prime is 744451. The reversal of 744450 is 54447.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 744450.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 744450.

It is not an unprimeable number, because it can be changed into a prime (744451) by changing a digit.

744450 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 696 + ... + 1404.

It is an arithmetic number, because the mean of its divisors is an integer number (44020).

2⁷⁴⁴⁴⁵⁰ is an apocalyptic number.

744450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 744450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1056480).

744450 is an abundant number, since it is smaller than the sum of its proper divisors (1368510).

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

744450 is a wasteful number, since it uses less digits than its factorization.

744450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 744450 is about 862.8151598112. The cubic root of 744450 is about 90.6313630094.

Adding to 744450 its reverse (54447), we get a palindrome (798897).

The spelling of 744450 in words is "seven hundred forty-four thousand, four hundred fifty".