1284326 has 4 divisors (see below), whose sum is σ = 1926492. Its totient is φ = 642162.

The previous prime is 1284317. The next prime is 1284329. The reversal of 1284326 is 6234821.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×1284326³ = 6355461296933393928, which contains 333 as substring.

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 1284295 and 1284304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284329) 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 as a sum of consecutive naturals, namely, 321080 + ... + 321083.

It is an arithmetic number, because the mean of its divisors is an integer number (481623).

2^1284326 is an apocalyptic number.

1284326 is a deficient number, since it is larger than the sum of its proper divisors (642166).

1284326 is an equidigital number, since it uses as much as digits as its factorization.

1284326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642165.

The product of its digits is 2304, while the sum is 26.

The square root of 1284326 is about 1133.2810772267. The cubic root of 1284326 is about 108.6988855664.

The spelling of 1284326 in words is "one million, two hundred eighty-four thousand, three hundred twenty-six".