4018489 has 2 divisors, whose sum is σ = 4018490. Its totient is φ = 4018488.

The previous prime is 4018471. The next prime is 4018507. The reversal of 4018489 is 9848104.

It is a balanced prime because it is at equal distance from previous prime (4018471) and next prime (4018507).

It can be written as a sum of positive squares in only one way, i.e., 2862864 + 1155625 = 1692^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 4018489 - 2⁵ = 4018457 is a prime.

It is a super-2 number, since 2×4018489² = 32296507686242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4018589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2009244 + 2009245.

It is an arithmetic number, because the mean of its divisors is an integer number (2009245).

Almost surely, 2^4018489 is an apocalyptic number.

It is an amenable number.

4018489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4018489 is an equidigital number, since it uses as much as digits as its factorization.

4018489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 4018489 is about 2004.6169210101. The cubic root of 4018489 is about 158.9843081438.

The spelling of 4018489 in words is "four million, eighteen thousand, four hundred eighty-nine".