1216472 has 16 divisors (see below), whose sum is σ = 2313240. Its totient is φ = 599616.

The previous prime is 1216459. The next prime is 1216489. The reversal of 1216472 is 2746121.

It is a congruent 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, 458 + ... + 1625.

2^1216472 is an apocalyptic number.

It is an amenable number.

1216472 is a deficient number, since it is larger than the sum of its proper divisors (1096768).

1216472 is a wasteful number, since it uses less digits than its factorization.

1216472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162 (or 2158 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 1216472 is about 1102.9378948971. The cubic root of 1216472 is about 106.7498743113.

The spelling of 1216472 in words is "one million, two hundred sixteen thousand, four hundred seventy-two".