2271078 has 24 divisors (see below), whose sum is σ = 5104008. Its totient is φ = 756864.

The previous prime is 2271067. The next prime is 2271083. The reversal of 2271078 is 8701722.

2271078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 11 ways as a sum of consecutive naturals, for example, 1851 + ... + 2822.

It is an arithmetic number, because the mean of its divisors is an integer number (212667).

2^2271078 is an apocalyptic number.

2271078 is an abundant number, since it is smaller than the sum of its proper divisors (2832930).

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

2271078 is an equidigital number, since it uses as much as digits as its factorization.

2271078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4690 (or 4678 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 2271078 is about 1507.0096217344. The cubic root of 2271078 is about 131.4449836602. Note that the first 3 decimals are identical.

The spelling of 2271078 in words is "two million, two hundred seventy-one thousand, seventy-eight".