4340489 has 4 divisors (see below), whose sum is σ = 4380420. Its totient is φ = 4300560.

The previous prime is 4340477. The next prime is 4340503. The reversal of 4340489 is 9840434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9840434 = 2 ⋅4920217.

It can be written as a sum of positive squares in 2 ways, for example, as 2948089 + 1392400 = 1717^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 4340489 - 2⁸ = 4340233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4340419) 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, 19802 + ... + 20019.

It is an arithmetic number, because the mean of its divisors is an integer number (1095105).

Almost surely, 2^4340489 is an apocalyptic number.

It is an amenable number.

4340489 is a deficient number, since it is larger than the sum of its proper divisors (39931).

4340489 is a wasteful number, since it uses less digits than its factorization.

4340489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39930.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 4340489 is about 2083.3840260499. The cubic root of 4340489 is about 163.1221311083.

Subtracting 4340489 from its reverse (9840434), we obtain a palindrome (5499945).

The spelling of 4340489 in words is "four million, three hundred forty thousand, four hundred eighty-nine".