1428315 has 32 divisors (see below), whose sum is σ = 2666496. Its totient is φ = 639360.

The previous prime is 1428281. The next prime is 1428359. The reversal of 1428315 is 5138241.

1428315 = T₁₆₆ + T₁₆₇ + ... + T₂₃₅.

It is not a de Polignac number, because 1428315 - 2¹⁰ = 1427291 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6294 + ... + 6516.

It is an arithmetic number, because the mean of its divisors is an integer number (83328).

2^1428315 is an apocalyptic number.

1428315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1428315 is a deficient number, since it is larger than the sum of its proper divisors (1238181).

1428315 is a wasteful number, since it uses less digits than its factorization.

1428315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299.

The product of its digits is 960, while the sum is 24.

The square root of 1428315 is about 1195.1213327525. The cubic root of 1428315 is about 112.6180489246.

The spelling of 1428315 in words is "one million, four hundred twenty-eight thousand, three hundred fifteen".