426424237 has 2 divisors, whose sum is σ = 426424238. Its totient is φ = 426424236.

The previous prime is 426424199. The next prime is 426424291. The reversal of 426424237 is 732424624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411724681 + 14699556 = 20291^2 + 3834^2 .

It is a cyclic number.

It is not a de Polignac number, because 426424237 - 2¹⁹ = 425899949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426424337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213212118 + 213212119.

It is an arithmetic number, because the mean of its divisors is an integer number (213212119).

Almost surely, 2^426424237 is an apocalyptic number.

It is an amenable number.

426424237 is a deficient number, since it is larger than the sum of its proper divisors (1).

426424237 is an equidigital number, since it uses as much as digits as its factorization.

426424237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 34.

The square root of 426424237 is about 20650.0420580686. The cubic root of 426424237 is about 752.6862116843.

The spelling of 426424237 in words is "four hundred twenty-six million, four hundred twenty-four thousand, two hundred thirty-seven".