1228396 has 12 divisors (see below), whose sum is σ = 2315152. Its totient is φ = 566928.

The previous prime is 1228393. The next prime is 1228397. The reversal of 1228396 is 6938221.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1228391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11760 + ... + 11863.

2^1228396 is an apocalyptic number.

It is an amenable number.

1228396 is a deficient number, since it is larger than the sum of its proper divisors (1086756).

1228396 is a wasteful number, since it uses less digits than its factorization.

1228396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23640 (or 23638 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 1228396 is about 1108.3302756850. The cubic root of 1228396 is about 107.0975324057.

The spelling of 1228396 in words is "one million, two hundred twenty-eight thousand, three hundred ninety-six".