4289778 has 12 divisors (see below), whose sum is σ = 9294558. Its totient is φ = 1429920.

The previous prime is 4289771. The next prime is 4289783. The reversal of 4289778 is 8779824.

It can be written as a sum of positive squares in only one way, i.e., 2913849 + 1375929 = 1707^2 + 1173^2 .

It is not an unprimeable number, because it can be changed into a prime (4289771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119143 + ... + 119178.

Almost surely, 2^4289778 is an apocalyptic number.

4289778 is an abundant number, since it is smaller than the sum of its proper divisors (5004780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4289778 is a wasteful number, since it uses less digits than its factorization.

4289778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238329 (or 238326 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 4289778 is about 2071.1779257225. The cubic root of 4289778 is about 162.4843756181.

The spelling of 4289778 in words is "four million, two hundred eighty-nine thousand, seven hundred seventy-eight".