4002489 has 12 divisors (see below), whose sum is σ = 5818176. Its totient is φ = 2651352.

The previous prime is 4002457. The next prime is 4002499. The reversal of 4002489 is 9842004.

4002489 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 4002489 - 2⁵ = 4002457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4002499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172 + ... + 2834.

It is an arithmetic number, because the mean of its divisors is an integer number (484848).

Almost surely, 2^4002489 is an apocalyptic number.

It is an amenable number.

4002489 is a deficient number, since it is larger than the sum of its proper divisors (1815687).

4002489 is a wasteful number, since it uses less digits than its factorization.

4002489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836 (or 2833 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4002489 is about 2000.6221532313. The cubic root of 4002489 is about 158.7730237134.

The spelling of 4002489 in words is "four million, two thousand, four hundred eighty-nine".