4040489 has 4 divisors (see below), whose sum is σ = 4045440. Its totient is φ = 4035540.

The previous prime is 4040473. The next prime is 4040501. The reversal of 4040489 is 9840404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4040489 - 2⁴ = 4040473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4040419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929 + ... + 2990.

It is an arithmetic number, because the mean of its divisors is an integer number (1011360).

Almost surely, 2^4040489 is an apocalyptic number.

It is an amenable number.

4040489 is a deficient number, since it is larger than the sum of its proper divisors (4951).

4040489 is a wasteful number, since it uses less digits than its factorization.

4040489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 4040489 is about 2010.0967638400. The cubic root of 4040489 is about 159.2739104676.

The spelling of 4040489 in words is "four million, forty thousand, four hundred eighty-nine".