1902228 has 12 divisors (see below), whose sum is σ = 4438560. Its totient is φ = 634072.

The previous prime is 1902221. The next prime is 1902239. The reversal of 1902228 is 8222091.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1902198 and 1902207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79248 + ... + 79271.

It is an arithmetic number, because the mean of its divisors is an integer number (369880).

2^1902228 is an apocalyptic number.

It is an amenable number.

1902228 is an abundant number, since it is smaller than the sum of its proper divisors (2536332).

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

1902228 is a wasteful number, since it uses less digits than its factorization.

1902228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158526 (or 158524 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1902228 is about 1379.2128189659. The cubic root of 1902228 is about 123.9046266286.

The spelling of 1902228 in words is "one million, nine hundred two thousand, two hundred twenty-eight".