744280 has 32 divisors (see below), whose sum is σ = 1749600. Its totient is φ = 284416.

The previous prime is 744253. The next prime is 744283. The reversal of 744280 is 82447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516 + ... + 1324.

It is an arithmetic number, because the mean of its divisors is an integer number (54675).

2⁷⁴⁴²⁸⁰ 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 744280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874800).

744280 is an abundant number, since it is smaller than the sum of its proper divisors (1005320).

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

744280 is a wasteful number, since it uses less digits than its factorization.

744280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 744280 is about 862.7166394593. The cubic root of 744280 is about 90.6244637305.

It can be divided in two parts, 744 and 280, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 744280 in words is "seven hundred forty-four thousand, two hundred eighty".