1428043 has 4 divisors (see below), whose sum is σ = 1436968. Its totient is φ = 1419120.

The previous prime is 1428041. The next prime is 1428079. The reversal of 1428043 is 3408241.

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

It is a cyclic number.

It is not a de Polignac number, because 1428043 - 2¹ = 1428041 is a prime.

It is a Duffinian number.

1428043 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1428041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4218 + ... + 4543.

It is an arithmetic number, because the mean of its divisors is an integer number (359242).

2^1428043 is an apocalyptic number.

1428043 is a deficient number, since it is larger than the sum of its proper divisors (8925).

1428043 is an equidigital number, since it uses as much as digits as its factorization.

1428043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8924.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1428043 is about 1195.0075313570. The cubic root of 1428043 is about 112.6108996954.

The spelling of 1428043 in words is "one million, four hundred twenty-eight thousand, forty-three".