4278238 has 8 divisors (see below), whose sum is σ = 6505488. Its totient is φ = 2109744.

The previous prime is 4278233. The next prime is 4278257. The reversal of 4278238 is 8328724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14506 + ... + 14797.

It is an arithmetic number, because the mean of its divisors is an integer number (813186).

Almost surely, 2^4278238 is an apocalyptic number.

4278238 is a deficient number, since it is larger than the sum of its proper divisors (2227250).

4278238 is a wasteful number, since it uses less digits than its factorization.

4278238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29378.

The product of its digits is 21504, while the sum is 34.

The square root of 4278238 is about 2068.3901952968. The cubic root of 4278238 is about 162.3385441713.

The spelling of 4278238 in words is "four million, two hundred seventy-eight thousand, two hundred thirty-eight".