4388489 has 6 divisors (see below), whose sum is σ = 5105034. Its totient is φ = 3761520.

The previous prime is 4388477. The next prime is 4388507. The reversal of 4388489 is 9848834.

It can be written as a sum of positive squares in only one way, i.e., 3211264 + 1177225 = 1792^2 + 1085^2 .

It is not a de Polignac number, because 4388489 - 2⁴ = 4388473 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4388429) 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, 44732 + ... + 44829.

It is an arithmetic number, because the mean of its divisors is an integer number (850839).

Almost surely, 2^4388489 is an apocalyptic number.

4388489 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4388489 is a deficient number, since it is larger than the sum of its proper divisors (716545).

4388489 is an equidigital number, since it uses as much as digits as its factorization.

4388489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89575 (or 89568 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 4388489 is about 2094.8720724665. The cubic root of 4388489 is about 163.7212322480.

The spelling of 4388489 in words is "four million, three hundred eighty-eight thousand, four hundred eighty-nine".