4278142 has 16 divisors (see below), whose sum is σ = 7056000. Its totient is φ = 1929240.

The previous prime is 4278139. The next prime is 4278143. The reversal of 4278142 is 2418724.

It is a self number, because there is not a number n which added to its sum of digits gives 4278142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2359 + ... + 3757.

It is an arithmetic number, because the mean of its divisors is an integer number (441000).

Almost surely, 2^4278142 is an apocalyptic number.

4278142 is a deficient number, since it is larger than the sum of its proper divisors (2777858).

4278142 is a wasteful number, since it uses less digits than its factorization.

4278142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551.

The product of its digits is 3584, while the sum is 28.

The square root of 4278142 is about 2068.3669887136. The cubic root of 4278142 is about 162.3373299162.

The spelling of 4278142 in words is "four million, two hundred seventy-eight thousand, one hundred forty-two".