1230818 has 8 divisors (see below), whose sum is σ = 1909980. Its totient is φ = 594160.

The previous prime is 1230791. The next prime is 1230829. The reversal of 1230818 is 8180321.

It can be written as a sum of positive squares in 2 ways, for example, as 1117249 + 113569 = 1057^2 + 337^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1230793 and 1230802.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10553 + ... + 10668.

2^1230818 is an apocalyptic number.

1230818 is a deficient number, since it is larger than the sum of its proper divisors (679162).

1230818 is a wasteful number, since it uses less digits than its factorization.

1230818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21252.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1230818 is about 1109.4223722280. The cubic root of 1230818 is about 107.1678734390.

It can be divided in two parts, 1230 and 818, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 1230818 in words is "one million, two hundred thirty thousand, eight hundred eighteen".