4242589 has 4 divisors (see below), whose sum is σ = 4568956. Its totient is φ = 3916224.

The previous prime is 4242569. The next prime is 4242593. The reversal of 4242589 is 9852424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 756900 + 3485689 = 870^2 + 1867^2 .

It is not a de Polignac number, because 4242589 - 2⁷ = 4242461 is a prime.

It is a super-2 number, since 2×4242589² = 35999122845842, which contains 22 as substring.

It is a Duffinian number.

4242589 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4242569) 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 3 ways as a sum of consecutive naturals, for example, 163164 + ... + 163189.

It is an arithmetic number, because the mean of its divisors is an integer number (1142239).

Almost surely, 2^4242589 is an apocalyptic number.

It is an amenable number.

4242589 is a deficient number, since it is larger than the sum of its proper divisors (326367).

4242589 is a wasteful number, since it uses less digits than its factorization.

4242589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326366.

The product of its digits is 23040, while the sum is 34.

The square root of 4242589 is about 2059.7545970333. The cubic root of 4242589 is about 161.8863832725.

The spelling of 4242589 in words is "four million, two hundred forty-two thousand, five hundred eighty-nine".