8239426 has 24 divisors (see below), whose sum is σ = 14098320. Its totient is φ = 3599856.

The previous prime is 8239423. The next prime is 8239447. The reversal of 8239426 is 6249328.

8239426 is nontrivially palindromic in base 6.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8239391 and 8239400.

It is not an unprimeable number, because it can be changed into a prime (8239421) 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 in 11 ways as a sum of consecutive naturals, for example, 5781 + ... + 7063.

It is an arithmetic number, because the mean of its divisors is an integer number (587430).

Almost surely, 2^8239426 is an apocalyptic number.

8239426 is a deficient number, since it is larger than the sum of its proper divisors (5858894).

8239426 is a wasteful number, since it uses less digits than its factorization.

8239426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330 (or 1317 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 8239426 is about 2870.4400359527. The cubic root of 8239426 is about 201.9756367048.

The spelling of 8239426 in words is "eight million, two hundred thirty-nine thousand, four hundred twenty-six".