1426239 has 12 divisors (see below), whose sum is σ = 2116296. Its totient is φ = 924912.

The previous prime is 1426237. The next prime is 1426247. The reversal of 1426239 is 9326241.

1426239 is a `hidden beast` number, since 1 + 426 + 239 = 666.

It is not a de Polignac number, because 1426239 - 2¹ = 1426237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426231) 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, 1809 + ... + 2474.

It is an arithmetic number, because the mean of its divisors is an integer number (176358).

2^1426239 is an apocalyptic number.

1426239 is a deficient number, since it is larger than the sum of its proper divisors (690057).

1426239 is a wasteful number, since it uses less digits than its factorization.

1426239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326 (or 4323 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1426239 is about 1194.2524858672. The cubic root of 1426239 is about 112.5634604919.

The spelling of 1426239 in words is "one million, four hundred twenty-six thousand, two hundred thirty-nine".