1228178 has 16 divisors (see below), whose sum is σ = 2163264. Its totient is φ = 511920.

The previous prime is 1228163. The next prime is 1228181. The reversal of 1228178 is 8718221.

1228178 is nontrivially palindromic in base 13.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1228178.

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 7 ways as a sum of consecutive naturals, for example, 668 + ... + 1703.

It is an arithmetic number, because the mean of its divisors is an integer number (135204).

2^1228178 is an apocalyptic number.

1228178 is a deficient number, since it is larger than the sum of its proper divisors (935086).

1228178 is a wasteful number, since it uses less digits than its factorization.

1228178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417.

The product of its digits is 1792, while the sum is 29.

The square root of 1228178 is about 1108.2319251853. The cubic root of 1228178 is about 107.0911965977.

The spelling of 1228178 in words is "one million, two hundred twenty-eight thousand, one hundred seventy-eight".