1228338 has 48 divisors (see below), whose sum is σ = 2919840. Its totient is φ = 382536.

The previous prime is 1228333. The next prime is 1228351. The reversal of 1228338 is 8338221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1228333) 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 23 ways as a sum of consecutive naturals, for example, 28545 + ... + 28587.

It is an arithmetic number, because the mean of its divisors is an integer number (60830).

2^1228338 is an apocalyptic number.

1228338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1459920).

1228338 is an abundant number, since it is smaller than the sum of its proper divisors (1691502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228338 is a wasteful number, since it uses less digits than its factorization.

1228338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 71 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1228338 is about 1108.3041098904. The cubic root of 1228338 is about 107.0958468052.

It can be divided in two parts, 12283 and 38, that added together give a palindrome (12321).

The spelling of 1228338 in words is "one million, two hundred twenty-eight thousand, three hundred thirty-eight".