4278938 has 8 divisors (see below), whose sum is σ = 6427188. Its totient is φ = 2136544.

The previous prime is 4278931. The next prime is 4278941. The reversal of 4278938 is 8398724.

It can be written as a sum of positive squares in 2 ways, for example, as 3659569 + 619369 = 1913^2 + 787^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 4278895 and 4278904.

It is not an unprimeable number, because it can be changed into a prime (4278931) 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, 2120 + ... + 3612.

Almost surely, 2^4278938 is an apocalyptic number.

4278938 is a deficient number, since it is larger than the sum of its proper divisors (2148250).

4278938 is a wasteful number, since it uses less digits than its factorization.

4278938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928.

The product of its digits is 96768, while the sum is 41.

The square root of 4278938 is about 2068.5594020961. The cubic root of 4278938 is about 162.3473975656.

The spelling of 4278938 in words is "four million, two hundred seventy-eight thousand, nine hundred thirty-eight".