744730549 has 2 divisors, whose sum is σ = 744730550. Its totient is φ = 744730548.

The previous prime is 744730523. The next prime is 744730579. The reversal of 744730549 is 945037447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 464402500 + 280328049 = 21550^2 + 16743^2 .

It is a cyclic number.

It is not a de Polignac number, because 744730549 - 2¹³ = 744722357 is a prime.

It is a super-2 number, since 2×744730549² = 1109247181227682802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (744730579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372365274 + 372365275.

It is an arithmetic number, because the mean of its divisors is an integer number (372365275).

Almost surely, 2^744730549 is an apocalyptic number.

It is an amenable number.

744730549 is a deficient number, since it is larger than the sum of its proper divisors (1).

744730549 is an equidigital number, since it uses as much as digits as its factorization.

744730549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 744730549 is about 27289.7517211132. The cubic root of 744730549 is about 906.4274651175.

The spelling of 744730549 in words is "seven hundred forty-four million, seven hundred thirty thousand, five hundred forty-nine".