1428275 has 6 divisors (see below), whose sum is σ = 1771092. Its totient is φ = 1142600.

The previous prime is 1428257. The next prime is 1428281. The reversal of 1428275 is 5728241.

It is not a de Polignac number, because 1428275 - 2¹⁸ = 1166131 is a prime.

It is a Duffinian 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, 28541 + ... + 28590.

It is an arithmetic number, because the mean of its divisors is an integer number (295182).

2^1428275 is an apocalyptic number.

1428275 is a deficient number, since it is larger than the sum of its proper divisors (342817).

1428275 is an equidigital number, since it uses as much as digits as its factorization.

1428275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57141 (or 57136 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 1428275 is about 1195.1045979327. The cubic root of 1428275 is about 112.6169976243.

The spelling of 1428275 in words is "one million, four hundred twenty-eight thousand, two hundred seventy-five".