428574049 has 2 divisors, whose sum is σ = 428574050. Its totient is φ = 428574048.

The previous prime is 428574037. The next prime is 428574061. The reversal of 428574049 is 940475824.

It is a balanced prime because it is at equal distance from previous prime (428574037) and next prime (428574061).

It can be written as a sum of positive squares in only one way, i.e., 276224400 + 152349649 = 16620^2 + 12343^2 .

It is a cyclic number.

It is not a de Polignac number, because 428574049 - 2¹⁹ = 428049761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428573996 and 428574014.

It is not a weakly prime, because it can be changed into another prime (428574649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214287024 + 214287025.

It is an arithmetic number, because the mean of its divisors is an integer number (214287025).

Almost surely, 2^428574049 is an apocalyptic number.

It is an amenable number.

428574049 is a deficient number, since it is larger than the sum of its proper divisors (1).

428574049 is an equidigital number, since it uses as much as digits as its factorization.

428574049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 428574049 is about 20702.0300695367. The cubic root of 428574049 is about 753.9489777547.

The spelling of 428574049 in words is "four hundred twenty-eight million, five hundred seventy-four thousand, forty-nine".