1608226 has 4 divisors (see below), whose sum is σ = 2412342. Its totient is φ = 804112.

The previous prime is 1608209. The next prime is 1608227. The reversal of 1608226 is 6228061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1357225 + 251001 = 1165^2 + 501^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1608226.

It is not an unprimeable number, because it can be changed into a prime (1608227) by changing a digit.

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 as a sum of consecutive naturals, namely, 402055 + ... + 402058.

2^1608226 is an apocalyptic number.

1608226 is a deficient number, since it is larger than the sum of its proper divisors (804116).

1608226 is an equidigital number, since it uses as much as digits as its factorization.

1608226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804115.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1608226 is about 1268.1585074430. The cubic root of 1608226 is about 117.1608084158.

The spelling of 1608226 in words is "one million, six hundred eight thousand, two hundred twenty-six".