1226918 has 32 divisors (see below), whose sum is σ = 2377728. Its totient is φ = 460800.

The previous prime is 1226899. The next prime is 1226959. The reversal of 1226918 is 8196221.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4646 + ... + 4902.

It is an arithmetic number, because the mean of its divisors is an integer number (74304).

2^1226918 is an apocalyptic number.

1226918 is a deficient number, since it is larger than the sum of its proper divisors (1150810).

1226918 is a wasteful number, since it uses less digits than its factorization.

1226918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308.

The product of its digits is 1728, while the sum is 29.

The square root of 1226918 is about 1107.6633062443. The cubic root of 1226918 is about 107.0545620932.

The spelling of 1226918 in words is "one million, two hundred twenty-six thousand, nine hundred eighteen".