2212478 has 8 divisors (see below), whose sum is σ = 3389472. Its totient is φ = 1082656.

The previous prime is 2212477. The next prime is 2212487. The reversal of 2212478 is 8742122.

2212478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212471) by changing a digit.

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, 11675 + ... + 11862.

It is an arithmetic number, because the mean of its divisors is an integer number (423684).

2^2212478 is an apocalyptic number.

2212478 is a deficient number, since it is larger than the sum of its proper divisors (1176994).

2212478 is a wasteful number, since it uses less digits than its factorization.

2212478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23586.

The product of its digits is 1792, while the sum is 26.

The square root of 2212478 is about 1487.4400828269. The cubic root of 2212478 is about 130.3045718694.

The spelling of 2212478 in words is "two million, two hundred twelve thousand, four hundred seventy-eight".