4278078 has 48 divisors (see below), whose sum is σ = 11157120. Its totient is φ = 1157328.

The previous prime is 4278077. The next prime is 4278089. The reversal of 4278078 is 8708724.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278073) 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 23 ways as a sum of consecutive naturals, for example, 1501 + ... + 3287.

It is an arithmetic number, because the mean of its divisors is an integer number (232440).

Almost surely, 2^4278078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4278078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5578560).

4278078 is an abundant number, since it is smaller than the sum of its proper divisors (6879042).

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

4278078 is a wasteful number, since it uses less digits than its factorization.

4278078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 4278078 is about 2068.3515175134. The cubic root of 4278078 is about 162.3365204027.

The spelling of 4278078 in words is "four million, two hundred seventy-eight thousand, seventy-eight".