1428276 has 24 divisors (see below), whose sum is σ = 3415104. Its totient is φ = 464320.

The previous prime is 1428257. The next prime is 1428281. The reversal of 1428276 is 6728241.

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 7 ways as a sum of consecutive naturals, for example, 960 + ... + 1943.

It is an arithmetic number, because the mean of its divisors is an integer number (142296).

2^1428276 is an apocalyptic number.

It is an amenable number.

1428276 is an abundant number, since it is smaller than the sum of its proper divisors (1986828).

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

1428276 is a wasteful number, since it uses less digits than its factorization.

1428276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951 (or 2949 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 1428276 is about 1195.1050163061. The cubic root of 1428276 is about 112.6170239071.

The spelling of 1428276 in words is "one million, four hundred twenty-eight thousand, two hundred seventy-six".