1428999 has 16 divisors (see below), whose sum is σ = 2239104. Its totient is φ = 799200.

The previous prime is 1428997. The next prime is 1429027. The reversal of 1428999 is 9998241.

It is not a de Polignac number, because 1428999 - 2¹ = 1428997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1428999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428991) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1237 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (139944).

2^1428999 is an apocalyptic number.

1428999 is a deficient number, since it is larger than the sum of its proper divisors (810105).

1428999 is a wasteful number, since it uses less digits than its factorization.

1428999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358.

The product of its digits is 46656, while the sum is 42.

The square root of 1428999 is about 1195.4074619141. The cubic root of 1428999 is about 112.6360231232.

The spelling of 1428999 in words is "one million, four hundred twenty-eight thousand, nine hundred ninety-nine".