2116478 has 32 divisors (see below), whose sum is σ = 4052160. Its totient is φ = 806400.

The previous prime is 2116469. The next prime is 2116481. The reversal of 2116478 is 8746112.

2116478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 2116478.

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 15 ways as a sum of consecutive naturals, for example, 5078 + ... + 5478.

It is an arithmetic number, because the mean of its divisors is an integer number (126630).

2^2116478 is an apocalyptic number.

2116478 is a deficient number, since it is larger than the sum of its proper divisors (1935682).

2116478 is a wasteful number, since it uses less digits than its factorization.

2116478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452.

The product of its digits is 2688, while the sum is 29.

The square root of 2116478 is about 1454.8120153477. The cubic root of 2116478 is about 128.3919868318.

The spelling of 2116478 in words is "two million, one hundred sixteen thousand, four hundred seventy-eight".