1228369 has 8 divisors (see below), whose sum is σ = 1369440. Its totient is φ = 1094976.

The previous prime is 1228351. The next prime is 1228373. The reversal of 1228369 is 9638221.

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

It is a cyclic number.

It is not a de Polignac number, because 1228369 - 2¹¹ = 1226321 is a prime.

It is a super-2 number, since 2×1228369² = 3017780800322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1228369.

It is not an unprimeable number, because it can be changed into a prime (1228309) by changing a digit.

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, 1579 + ... + 2224.

It is an arithmetic number, because the mean of its divisors is an integer number (171180).

2^1228369 is an apocalyptic number.

1228369 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1228369 is a deficient number, since it is larger than the sum of its proper divisors (141071).

1228369 is a wasteful number, since it uses less digits than its factorization.

1228369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839.

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

The square root of 1228369 is about 1108.3180951333. The cubic root of 1228369 is about 107.0967477362.

The spelling of 1228369 in words is "one million, two hundred twenty-eight thousand, three hundred sixty-nine".