916228 has 18 divisors (see below), whose sum is σ = 1680014. Its totient is φ = 437184.

The previous prime is 916219. The next prime is 916259. The reversal of 916228 is 822619.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 611524 + 304704 = 782^2 + 552^2 .

It is a junction number, because it is equal to n+sod(n) for n = 916196 and 916205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1900 + ... + 2332.

2⁹¹⁶²²⁸ is an apocalyptic number.

It is an amenable number.

916228 is a deficient number, since it is larger than the sum of its proper divisors (763786).

916228 is a wasteful number, since it uses less digits than its factorization.

916228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 458 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 916228 is about 957.1979941475. The cubic root of 916228 is about 97.1257800761.

The spelling of 916228 in words is "nine hundred sixteen thousand, two hundred twenty-eight".