1228366 has 4 divisors (see below), whose sum is σ = 1842552. Its totient is φ = 614182.

The previous prime is 1228351. The next prime is 1228373. The reversal of 1228366 is 6638221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307090 + ... + 307093.

It is an arithmetic number, because the mean of its divisors is an integer number (460638).

2^1228366 is an apocalyptic number.

1228366 is a deficient number, since it is larger than the sum of its proper divisors (614186).

1228366 is an equidigital number, since it uses as much as digits as its factorization.

1228366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614185.

The product of its digits is 3456, while the sum is 28.

The square root of 1228366 is about 1108.3167417304. The cubic root of 1228366 is about 107.0966605500.

The spelling of 1228366 in words is "one million, two hundred twenty-eight thousand, three hundred sixty-six".