2216078 has 8 divisors (see below), whose sum is σ = 3414072. Its totient is φ = 1078056.

The previous prime is 2216057. The next prime is 2216083. The reversal of 2216078 is 8706122.

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

It is a super-2 number, since 2×2216078² = 9822003404168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14900 + ... + 15047.

It is an arithmetic number, because the mean of its divisors is an integer number (426759).

2^2216078 is an apocalyptic number.

2216078 is a deficient number, since it is larger than the sum of its proper divisors (1197994).

2216078 is a wasteful number, since it uses less digits than its factorization.

2216078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29986.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2216078 is about 1488.6497237430. The cubic root of 2216078 is about 130.3752079406.

The spelling of 2216078 in words is "two million, two hundred sixteen thousand, seventy-eight".