1226618 has 16 divisors (see below), whose sum is σ = 1995840. Its totient is φ = 563136.

The previous prime is 1226611. The next prime is 1226623. The reversal of 1226618 is 8166221.

It is not an unprimeable number, because it can be changed into a prime (1226611) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1043 + ... + 1881.

It is an arithmetic number, because the mean of its divisors is an integer number (124740).

2^1226618 is an apocalyptic number.

1226618 is a deficient number, since it is larger than the sum of its proper divisors (769222).

1226618 is a wasteful number, since it uses less digits than its factorization.

1226618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901.

The product of its digits is 1152, while the sum is 26.

The square root of 1226618 is about 1107.5278777530. The cubic root of 1226618 is about 107.0458358956.

The spelling of 1226618 in words is "one million, two hundred twenty-six thousand, six hundred eighteen".