428744341 has 2 divisors, whose sum is σ = 428744342. Its totient is φ = 428744340.

The previous prime is 428744333. The next prime is 428744347. The reversal of 428744341 is 143447824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350775441 + 77968900 = 18729^2 + 8830^2 .

It is a cyclic number.

It is not a de Polignac number, because 428744341 - 2³ = 428744333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 428744341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428744347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214372170 + 214372171.

It is an arithmetic number, because the mean of its divisors is an integer number (214372171).

Almost surely, 2^428744341 is an apocalyptic number.

It is an amenable number.

428744341 is a deficient number, since it is larger than the sum of its proper divisors (1).

428744341 is an equidigital number, since it uses as much as digits as its factorization.

428744341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86016, while the sum is 37.

The square root of 428744341 is about 20706.1425910284. The cubic root of 428744341 is about 754.0488239603.

It can be divided in two parts, 428 and 744341, that added together give a square (744769 = 863²).

The spelling of 428744341 in words is "four hundred twenty-eight million, seven hundred forty-four thousand, three hundred forty-one".