1216446 has 32 divisors (see below), whose sum is σ = 3034368. Its totient is φ = 315840.

The previous prime is 1216441. The next prime is 1216451. The reversal of 1216446 is 6446121.

It is an interprime number because it is at equal distance from previous prime (1216441) and next prime (1216451).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216441) 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 15 ways as a sum of consecutive naturals, for example, 855 + ... + 1778.

It is an arithmetic number, because the mean of its divisors is an integer number (94824).

2^1216446 is an apocalyptic number.

1216446 is an abundant number, since it is smaller than the sum of its proper divisors (1817922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1216446 is a wasteful number, since it uses less digits than its factorization.

1216446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656.

The product of its digits is 1152, while the sum is 24.

The square root of 1216446 is about 1102.9261081324. The cubic root of 1216446 is about 106.7491137741.

The spelling of 1216446 in words is "one million, two hundred sixteen thousand, four hundred forty-six".