1428056 has 24 divisors (see below), whose sum is σ = 3115620. Its totient is φ = 611856.

The previous prime is 1428041. The next prime is 1428079. The reversal of 1428056 is 6508241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1430 + ... + 2213.

2^1428056 is an apocalyptic number.

It is an amenable number.

1428056 is an abundant number, since it is smaller than the sum of its proper divisors (1687564).

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

1428056 is a wasteful number, since it uses less digits than its factorization.

1428056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663 (or 3652 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1428056 is about 1195.0129706409. The cubic root of 1428056 is about 112.6112414072.

The spelling of 1428056 in words is "one million, four hundred twenty-eight thousand, fifty-six".