743440441 has 2 divisors, whose sum is σ = 743440442. Its totient is φ = 743440440.

The previous prime is 743440403. The next prime is 743440457. The reversal of 743440441 is 144044347.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543076416 + 200364025 = 23304^2 + 14155^2 .

It is a cyclic number.

It is not a de Polignac number, because 743440441 - 2⁹ = 743439929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (743440471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371720220 + 371720221.

It is an arithmetic number, because the mean of its divisors is an integer number (371720221).

Almost surely, 2^743440441 is an apocalyptic number.

It is an amenable number.

743440441 is a deficient number, since it is larger than the sum of its proper divisors (1).

743440441 is an equidigital number, since it uses as much as digits as its factorization.

743440441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 743440441 is about 27266.1042505159. The cubic root of 743440441 is about 905.9037565866.

Adding to 743440441 its reverse (144044347), we get a palindrome (887484788).

The spelling of 743440441 in words is "seven hundred forty-three million, four hundred forty thousand, four hundred forty-one".