1428558 has 8 divisors (see below), whose sum is σ = 2857128. Its totient is φ = 476184.

The previous prime is 1428541. The next prime is 1428571. The reversal of 1428558 is 8558241.

It is a sphenic number, since it is the product of 3 distinct primes.

1428558 is an admirable number.

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 in 3 ways as a sum of consecutive naturals, for example, 119041 + ... + 119052.

It is an arithmetic number, because the mean of its divisors is an integer number (357141).

2^1428558 is an apocalyptic number.

1428558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1428558 is a wasteful number, since it uses less digits than its factorization.

1428558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238098.

The product of its digits is 12800, while the sum is 33.

The square root of 1428558 is about 1195.2229917467. Note that the first 3 decimals coincide. The cubic root of 1428558 is about 112.6244351523.

The spelling of 1428558 in words is "one million, four hundred twenty-eight thousand, five hundred fifty-eight".