1938228 has 24 divisors (see below), whose sum is σ = 4761120. Its totient is φ = 612000.

The previous prime is 1938227. The next prime is 1938239. The reversal of 1938228 is 8228391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938227) 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, 4023 + ... + 4478.

It is an arithmetic number, because the mean of its divisors is an integer number (198380).

2^1938228 is an apocalyptic number.

It is an amenable number.

1938228 is an abundant number, since it is smaller than the sum of its proper divisors (2822892).

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

1938228 is a wasteful number, since it uses less digits than its factorization.

1938228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8527 (or 8525 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1938228 is about 1392.2025714672. The cubic root of 1938228 is about 124.6813859038.

The spelling of 1938228 in words is "one million, nine hundred thirty-eight thousand, two hundred twenty-eight".