744481 has 4 divisors (see below), whose sum is σ = 788292. Its totient is φ = 700672.

The previous prime is 744451. The next prime is 744493. The reversal of 744481 is 184447.

744481 = T₇₀₃ + T₇₀₄ + T₇₀₅.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 654481 + 90000 = 809^2 + 300^2 .

It is not a de Polignac number, because 744481 - 2⁷ = 744353 is a prime.

It is a super-2 number, since 2×744481² = 1108503918722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (744431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21880 + ... + 21913.

It is an arithmetic number, because the mean of its divisors is an integer number (197073).

2⁷⁴⁴⁴⁸¹ is an apocalyptic number.

744481 is the 705-th centered triangular number.

It is an amenable number.

744481 is a deficient number, since it is larger than the sum of its proper divisors (43811).

744481 is a wasteful number, since it uses less digits than its factorization.

744481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43810.

The product of its digits is 3584, while the sum is 28.

The square root of 744481 is about 862.8331240744. The cubic root of 744481 is about 90.6326210000.

It can be divided in two parts, 744 and 481, that added together give a triangular number (1225 = T₄₉).

The spelling of 744481 in words is "seven hundred forty-four thousand, four hundred eighty-one".