1428208 has 20 divisors (see below), whose sum is σ = 2888208. Its totient is φ = 682880.

The previous prime is 1428199. The next prime is 1428209. The reversal of 1428208 is 8028241.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428209) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1573 + ... + 2308.

2^1428208 is an apocalyptic number.

It is an amenable number.

1428208 is an abundant number, since it is smaller than the sum of its proper divisors (1460000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1428208 is a wasteful number, since it uses less digits than its factorization.

1428208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912 (or 3906 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 1428208 is about 1195.0765665848. The cubic root of 1428208 is about 112.6152366523.

The spelling of 1428208 in words is "one million, four hundred twenty-eight thousand, two hundred eight".