744024389 has 2 divisors, whose sum is σ = 744024390. Its totient is φ = 744024388.

The previous prime is 744024371. The next prime is 744024409. The reversal of 744024389 is 983420447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 680949025 + 63075364 = 26095^2 + 7942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-744024389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (744024349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372012194 + 372012195.

It is an arithmetic number, because the mean of its divisors is an integer number (372012195).

Almost surely, 2^744024389 is an apocalyptic number.

It is an amenable number.

744024389 is a deficient number, since it is larger than the sum of its proper divisors (1).

744024389 is an equidigital number, since it uses as much as digits as its factorization.

744024389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 744024389 is about 27276.8104623689. The cubic root of 744024389 is about 906.1408803757.

The spelling of 744024389 in words is "seven hundred forty-four million, twenty-four thousand, three hundred eighty-nine".