1426843445 has 4 divisors (see below), whose sum is σ = 1712212140. Its totient is φ = 1141474752.

The previous prime is 1426843441. The next prime is 1426843459. The reversal of 1426843445 is 5443486241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 995907364 + 430936081 = 31558^2 + 20759^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426843445 - 2² = 1426843441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426843441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142684340 + ... + 142684349.

It is an arithmetic number, because the mean of its divisors is an integer number (428053035).

Almost surely, 2^1426843445 is an apocalyptic number.

It is an amenable number.

1426843445 is a deficient number, since it is larger than the sum of its proper divisors (285368695).

1426843445 is an equidigital number, since it uses as much as digits as its factorization.

1426843445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285368694.

The product of its digits is 368640, while the sum is 41.

The square root of 1426843445 is about 37773.5813102226. The cubic root of 1426843445 is about 1125.7935984015.

The spelling of 1426843445 in words is "one billion, four hundred twenty-six million, eight hundred forty-three thousand, four hundred forty-five".