1284830 has 8 divisors (see below), whose sum is σ = 2312712. Its totient is φ = 513928.

The previous prime is 1284823. The next prime is 1284841. The reversal of 1284830 is 384821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1284830.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 64232 + ... + 64251.

It is an arithmetic number, because the mean of its divisors is an integer number (289089).

2^1284830 is an apocalyptic number.

1284830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1284830 is a deficient number, since it is larger than the sum of its proper divisors (1027882).

1284830 is a wasteful number, since it uses less digits than its factorization.

1284830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128490.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1284830 is about 1133.5034186098. The cubic root of 1284830 is about 108.7131023810.

Subtracting from 1284830 its reverse (384821), we obtain a palindrome (900009).

The spelling of 1284830 in words is "one million, two hundred eighty-four thousand, eight hundred thirty".