1428584 has 16 divisors (see below), whose sum is σ = 2692320. Its totient is φ = 710640.

The previous prime is 1428571. The next prime is 1428587. The reversal of 1428584 is 4858241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1428584.

It is not an unprimeable number, because it can be changed into a prime (1428587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949 + ... + 2579.

It is an arithmetic number, because the mean of its divisors is an integer number (168270).

2^1428584 is an apocalyptic number.

It is an amenable number.

1428584 is a deficient number, since it is larger than the sum of its proper divisors (1263736).

1428584 is a wasteful number, since it uses less digits than its factorization.

1428584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920 (or 916 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 1428584 is about 1195.2338683287. The cubic root of 1428584 is about 112.6251184094.

The spelling of 1428584 in words is "one million, four hundred twenty-eight thousand, five hundred eighty-four".