1426189 has 4 divisors (see below), whose sum is σ = 1443456. Its totient is φ = 1408924.

The previous prime is 1426171. The next prime is 1426199. The reversal of 1426189 is 9816241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9816241 = 373 ⋅26317.

It is a cyclic number.

It is not a de Polignac number, because 1426189 - 2⁵ = 1426157 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 self number, because there is not a number n which added to its sum of digits gives 1426189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8509 + ... + 8674.

It is an arithmetic number, because the mean of its divisors is an integer number (360864).

2^1426189 is an apocalyptic number.

It is an amenable number.

1426189 is a deficient number, since it is larger than the sum of its proper divisors (17267).

1426189 is an equidigital number, since it uses as much as digits as its factorization.

1426189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17266.

The product of its digits is 3456, while the sum is 31.

The square root of 1426189 is about 1194.2315520869. The cubic root of 1426189 is about 112.5621450886.

The spelling of 1426189 in words is "one million, four hundred twenty-six thousand, one hundred eighty-nine".