426944249 has 2 divisors, whose sum is σ = 426944250. Its totient is φ = 426944248.

The previous prime is 426944213. The next prime is 426944257. The reversal of 426944249 is 942449624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235315600 + 191628649 = 15340^2 + 13843^2 .

It is a cyclic number.

It is not a de Polignac number, because 426944249 - 2¹⁶ = 426878713 is a prime.

It is not a weakly prime, because it can be changed into another prime (426944279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213472124 + 213472125.

It is an arithmetic number, because the mean of its divisors is an integer number (213472125).

Almost surely, 2^426944249 is an apocalyptic number.

It is an amenable number.

426944249 is a deficient number, since it is larger than the sum of its proper divisors (1).

426944249 is an equidigital number, since it uses as much as digits as its factorization.

426944249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 44.

The square root of 426944249 is about 20662.6292857419. The cubic root of 426944249 is about 752.9920470734.

The spelling of 426944249 in words is "four hundred twenty-six million, nine hundred forty-four thousand, two hundred forty-nine".