1428824 has 8 divisors (see below), whose sum is σ = 2679060. Its totient is φ = 714408.

The previous prime is 1428811. The next prime is 1428839. The reversal of 1428824 is 4288241.

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 89294 + ... + 89309.

2^1428824 is an apocalyptic number.

It is an amenable number.

1428824 is a deficient number, since it is larger than the sum of its proper divisors (1250236).

1428824 is a wasteful number, since it uses less digits than its factorization.

1428824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178609 (or 178605 counting only the distinct ones).

The product of its digits is 4096, while the sum is 29.

The square root of 1428824 is about 1195.3342628738. The cubic root of 1428824 is about 112.6314250074.

The spelling of 1428824 in words is "one million, four hundred twenty-eight thousand, eight hundred twenty-four".