1216466 has 8 divisors (see below), whose sum is σ = 1839024. Its totient is φ = 603460.

The previous prime is 1216459. The next prime is 1216489. The reversal of 1216466 is 6646121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 2060 + ... + 2583.

It is an arithmetic number, because the mean of its divisors is an integer number (229878).

2^1216466 is an apocalyptic number.

1216466 is a deficient number, since it is larger than the sum of its proper divisors (622558).

1216466 is a wasteful number, since it uses less digits than its factorization.

1216466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776.

The product of its digits is 1728, while the sum is 26.

The square root of 1216466 is about 1102.9351748856. The cubic root of 1216466 is about 106.7496988037.

The spelling of 1216466 in words is "one million, two hundred sixteen thousand, four hundred sixty-six".