1923228 has 36 divisors (see below), whose sum is σ = 4983888. Its totient is φ = 624960.

The previous prime is 1923221. The next prime is 1923253. The reversal of 1923228 is 8223291.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1923221) 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 11 ways as a sum of consecutive naturals, for example, 825 + ... + 2127.

2^1923228 is an apocalyptic number.

1923228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1923228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2491944).

1923228 is an abundant number, since it is smaller than the sum of its proper divisors (3060660).

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

1923228 is a wasteful number, since it uses less digits than its factorization.

1923228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354 (or 1349 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1923228 is about 1386.8049610526. The cubic root of 1923228 is about 124.3589150348.

The spelling of 1923228 in words is "one million, nine hundred twenty-three thousand, two hundred twenty-eight".