4078278 has 12 divisors (see below), whose sum is σ = 8836308. Its totient is φ = 1359420.

The previous prime is 4078273. The next prime is 4078301. The reversal of 4078278 is 8728704.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4078273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113268 + ... + 113303.

It is an arithmetic number, because the mean of its divisors is an integer number (736359).

Almost surely, 2^4078278 is an apocalyptic number.

4078278 is an abundant number, since it is smaller than the sum of its proper divisors (4758030).

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

4078278 is a wasteful number, since it uses less digits than its factorization.

4078278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226579 (or 226576 counting only the distinct ones).

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

The square root of 4078278 is about 2019.4746841691. The cubic root of 4078278 is about 159.7689111896.

It can be divided in two parts, 4078 and 278, that added together give a square (4356 = 66²).

The spelling of 4078278 in words is "four million, seventy-eight thousand, two hundred seventy-eight".