1428335 has 4 divisors (see below), whose sum is σ = 1714008. Its totient is φ = 1142664.

The previous prime is 1428281. The next prime is 1428359. The reversal of 1428335 is 5338241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5338241 = 41 ⋅130201.

It is a cyclic number.

It is not a de Polignac number, because 1428335 - 2⁸ = 1428079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142829 + ... + 142838.

It is an arithmetic number, because the mean of its divisors is an integer number (428502).

2^1428335 is an apocalyptic number.

1428335 is a deficient number, since it is larger than the sum of its proper divisors (285673).

1428335 is an equidigital number, since it uses as much as digits as its factorization.

1428335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285672.

The product of its digits is 2880, while the sum is 26.

The square root of 1428335 is about 1195.1297000744. The cubic root of 1428335 is about 112.6185745674.

The spelling of 1428335 in words is "one million, four hundred twenty-eight thousand, three hundred thirty-five".