1228316 has 6 divisors (see below), whose sum is σ = 2149560. Its totient is φ = 614156.

The previous prime is 1228309. The next prime is 1228327. The reversal of 1228316 is 6138221.

It is a junction number, because it is equal to n+sod(n) for n = 1228291 and 1228300.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 153536 + ... + 153543.

It is an arithmetic number, because the mean of its divisors is an integer number (358260).

2^1228316 is an apocalyptic number.

It is an amenable number.

1228316 is a deficient number, since it is larger than the sum of its proper divisors (921244).

1228316 is a wasteful number, since it uses less digits than its factorization.

1228316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307083 (or 307081 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 1228316 is about 1108.2941847723. The cubic root of 1228316 is about 107.0952074256.

The spelling of 1228316 in words is "one million, two hundred twenty-eight thousand, three hundred sixteen".