744302389 has 2 divisors, whose sum is σ = 744302390. Its totient is φ = 744302388.

The previous prime is 744302359. The next prime is 744302393. The reversal of 744302389 is 983203447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 676520100 + 67782289 = 26010^2 + 8233^2 .

It is a cyclic number.

It is not a de Polignac number, because 744302389 - 2⁷ = 744302261 is a prime.

It is a super-2 number, since 2×744302389² = 1107972092542214642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (744302309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372151194 + 372151195.

It is an arithmetic number, because the mean of its divisors is an integer number (372151195).

Almost surely, 2^744302389 is an apocalyptic number.

It is an amenable number.

744302389 is a deficient number, since it is larger than the sum of its proper divisors (1).

744302389 is an equidigital number, since it uses as much as digits as its factorization.

744302389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 744302389 is about 27281.9058901683. The cubic root of 744302389 is about 906.2537242558.

The spelling of 744302389 in words is "seven hundred forty-four million, three hundred two thousand, three hundred eighty-nine".