1428603 has 8 divisors (see below), whose sum is σ = 2078016. Its totient is φ = 865800.

The previous prime is 1428601. The next prime is 1428613. The reversal of 1428603 is 3068241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1428603 - 2¹ = 1428601 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

1428603 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1428601) 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 7 ways as a sum of consecutive naturals, for example, 21613 + ... + 21678.

It is an arithmetic number, because the mean of its divisors is an integer number (259752).

2^1428603 is an apocalyptic number.

1428603 is a deficient number, since it is larger than the sum of its proper divisors (649413).

1428603 is a wasteful number, since it uses less digits than its factorization.

1428603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43305.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1428603 is about 1195.2418165376. The cubic root of 1428603 is about 112.6256177075.

The spelling of 1428603 in words is "one million, four hundred twenty-eight thousand, six hundred three".