1802228 has 6 divisors (see below), whose sum is σ = 3153906. Its totient is φ = 901112.

The previous prime is 1802219. The next prime is 1802231. The reversal of 1802228 is 8222081.

It can be written as a sum of positive squares in only one way, i.e., 1227664 + 574564 = 1108^2 + 758^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225275 + ... + 225282.

It is an arithmetic number, because the mean of its divisors is an integer number (525651).

2^1802228 is an apocalyptic number.

It is an amenable number.

1802228 is a deficient number, since it is larger than the sum of its proper divisors (1351678).

1802228 is a wasteful number, since it uses less digits than its factorization.

1802228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450561 (or 450559 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 1802228 is about 1342.4708562945. The cubic root of 1802228 is about 121.6942086477.

The spelling of 1802228 in words is "one million, eight hundred two thousand, two hundred twenty-eight".