1426909 has 4 divisors (see below), whose sum is σ = 1556640. Its totient is φ = 1297180.

The previous prime is 1426907. The next prime is 1426913. The reversal of 1426909 is 9096241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1426909 - 2¹ = 1426907 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426907) 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 3 ways as a sum of consecutive naturals, for example, 64849 + ... + 64870.

It is an arithmetic number, because the mean of its divisors is an integer number (389160).

2^1426909 is an apocalyptic number.

It is an amenable number.

1426909 is a deficient number, since it is larger than the sum of its proper divisors (129731).

1426909 is a wasteful number, since it uses less digits than its factorization.

1426909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129730.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1426909 is about 1194.5329631283. The cubic root of 1426909 is about 112.5810839319.

The spelling of 1426909 in words is "one million, four hundred twenty-six thousand, nine hundred nine".