6426243 has 8 divisors (see below), whose sum is σ = 9520400. Its totient is φ = 4284144.

The previous prime is 6426241. The next prime is 6426247. The reversal of 6426243 is 3426246.

It is not a de Polignac number, because 6426243 - 2¹ = 6426241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 238009 = 6426243 / (6 + 4 + 2 + 6 + 2 + 4 + 3).

It is a d-powerful number, because it can be written as 6³ + 4² + 2¹⁷ + 6⁴ + 2²¹ + 4¹¹ + 3⁷ .

It is a Duffinian number.

6426243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6426241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118978 + ... + 119031.

It is an arithmetic number, because the mean of its divisors is an integer number (1190050).

Almost surely, 2^6426243 is an apocalyptic number.

6426243 is a deficient number, since it is larger than the sum of its proper divisors (3094157).

6426243 is a wasteful number, since it uses less digits than its factorization.

6426243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238018 (or 238012 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 6426243 is about 2535.0035502934. The cubic root of 6426243 is about 185.9169764745.

The spelling of 6426243 in words is "six million, four hundred twenty-six thousand, two hundred forty-three".