4278536 has 16 divisors (see below), whose sum is σ = 8057340. Its totient is φ = 2129920.

The previous prime is 4278523. The next prime is 4278539. The reversal of 4278536 is 6358724.

It is a happy number.

4278536 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3976036 + 302500 = 1994^2 + 550^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4278496 and 4278505.

It is not an unprimeable number, because it can be changed into a prime (4278539) 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, 1016 + ... + 3096.

Almost surely, 2^4278536 is an apocalyptic number.

It is an amenable number.

4278536 is a deficient number, since it is larger than the sum of its proper divisors (3778804).

4278536 is a wasteful number, since it uses less digits than its factorization.

4278536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344 (or 2340 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 4278536 is about 2068.4622307405. The cubic root of 4278536 is about 162.3423133057.

The spelling of 4278536 in words is "four million, two hundred seventy-eight thousand, five hundred thirty-six".