1648228 has 12 divisors (see below), whose sum is σ = 2912112. Its totient is φ = 816200.

The previous prime is 1648223. The next prime is 1648237. The reversal of 1648228 is 8228461.

It is a self number, because there is not a number n which added to its sum of digits gives 1648228.

It is not an unprimeable number, because it can be changed into a prime (1648223) 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, 1498 + ... + 2353.

It is an arithmetic number, because the mean of its divisors is an integer number (242676).

2^1648228 is an apocalyptic number.

It is an amenable number.

1648228 is a deficient number, since it is larger than the sum of its proper divisors (1263884).

1648228 is a wasteful number, since it uses less digits than its factorization.

1648228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962 (or 3960 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 1648228 is about 1283.8333225150. The cubic root of 1648228 is about 118.1242586481.

The spelling of 1648228 in words is "one million, six hundred forty-eight thousand, two hundred twenty-eight".