1338228 has 24 divisors (see below), whose sum is σ = 3469760. Its totient is φ = 446040.

The previous prime is 1338217. The next prime is 1338229. The reversal of 1338228 is 8228331.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338229) 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, 6088 + ... + 6303.

2^1338228 is an apocalyptic number.

1338228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1338228 is an abundant number, since it is smaller than the sum of its proper divisors (2131532).

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

1338228 is a wasteful number, since it uses less digits than its factorization.

1338228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12404 (or 12396 counting only the distinct ones).

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

The square root of 1338228 is about 1156.8180496517. The cubic root of 1338228 is about 110.1987591030.

The spelling of 1338228 in words is "one million, three hundred thirty-eight thousand, two hundred twenty-eight".