4142489 has 4 divisors (see below), whose sum is σ = 4461156. Its totient is φ = 3823824.

The previous prime is 4142473. The next prime is 4142497. The reversal of 4142489 is 9842414.

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 2496400 + 1646089 = 1580^2 + 1283^2 .

It is a cyclic number.

It is not a de Polignac number, because 4142489 - 2⁴ = 4142473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4142429) 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, 159314 + ... + 159339.

It is an arithmetic number, because the mean of its divisors is an integer number (1115289).

Almost surely, 2^4142489 is an apocalyptic number.

It is an amenable number.

4142489 is a deficient number, since it is larger than the sum of its proper divisors (318667).

4142489 is a wasteful number, since it uses less digits than its factorization.

4142489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318666.

The product of its digits is 9216, while the sum is 32.

The square root of 4142489 is about 2035.3105414162. The cubic root of 4142489 is about 160.6030497341.

The spelling of 4142489 in words is "four million, one hundred forty-two thousand, four hundred eighty-nine".