1328228 has 12 divisors (see below), whose sum is σ = 2535792. Its totient is φ = 603720.

The previous prime is 1328219. The next prime is 1328231. The reversal of 1328228 is 8228231.

It is a junction number, because it is equal to n+sod(n) for n = 1328197 and 1328206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15050 + ... + 15137.

It is an arithmetic number, because the mean of its divisors is an integer number (211316).

2^1328228 is an apocalyptic number.

It is an amenable number.

1328228 is a deficient number, since it is larger than the sum of its proper divisors (1207564).

1328228 is a wasteful number, since it uses less digits than its factorization.

1328228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30202 (or 30200 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 1328228 is about 1152.4877439695. The cubic root of 1328228 is about 109.9235832894.

The spelling of 1328228 in words is "one million, three hundred twenty-eight thousand, two hundred twenty-eight".