1807228 has 12 divisors (see below), whose sum is σ = 3248392. Its totient is φ = 879120.

The previous prime is 1807213. The next prime is 1807231. The reversal of 1807228 is 8227081.

It is a junction number, because it is equal to n+sod(n) for n = 1807196 and 1807205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5958 + ... + 6253.

2^1807228 is an apocalyptic number.

It is an amenable number.

1807228 is a deficient number, since it is larger than the sum of its proper divisors (1441164).

1807228 is a wasteful number, since it uses less digits than its factorization.

1807228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12252 (or 12250 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1807228 is about 1344.3318042805. The cubic root of 1807228 is about 121.8066452551.

The spelling of 1807228 in words is "one million, eight hundred seven thousand, two hundred twenty-eight".