1428185 has 16 divisors (see below), whose sum is σ = 1952640. Its totient is φ = 992640.

The previous prime is 1428179. The next prime is 1428197. The reversal of 1428185 is 5818241.

It is not a de Polignac number, because 1428185 - 2⁴ = 1428169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701 + ... + 1829.

It is an arithmetic number, because the mean of its divisors is an integer number (122040).

2^1428185 is an apocalyptic number.

It is an amenable number.

1428185 is a deficient number, since it is larger than the sum of its proper divisors (524455).

1428185 is a wasteful number, since it uses less digits than its factorization.

1428185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168.

The product of its digits is 2560, while the sum is 29.

The square root of 1428185 is about 1195.0669437316. The cubic root of 1428185 is about 112.6146321269.

The spelling of 1428185 in words is "one million, four hundred twenty-eight thousand, one hundred eighty-five".