4278819 has 16 divisors (see below), whose sum is σ = 6049280. Its totient is φ = 2682720.

The previous prime is 4278773. The next prime is 4278829. The reversal of 4278819 is 9188724.

It is not a de Polignac number, because 4278819 - 2⁷ = 4278691 is a prime.

It is a super-2 number, since 2×4278819² = 36616584069522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4278829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15309 + ... + 15585.

It is an arithmetic number, because the mean of its divisors is an integer number (378080).

Almost surely, 2^4278819 is an apocalyptic number.

4278819 is a deficient number, since it is larger than the sum of its proper divisors (1770461).

4278819 is a wasteful number, since it uses less digits than its factorization.

4278819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570.

The product of its digits is 32256, while the sum is 39.

The square root of 4278819 is about 2068.5306379167. The cubic root of 4278819 is about 162.3458925566.

The spelling of 4278819 in words is "four million, two hundred seventy-eight thousand, eight hundred nineteen".