4491004 has 24 divisors (see below), whose sum is σ = 9072000. Its totient is φ = 1905456.

The previous prime is 4490999. The next prime is 4491007. The reversal of 4491004 is 4001944.

It is a happy number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4491007) 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 7 ways as a sum of consecutive naturals, for example, 2247 + ... + 3745.

It is an arithmetic number, because the mean of its divisors is an integer number (378000).

Almost surely, 2^4491004 is an apocalyptic number.

It is an amenable number.

4491004 is an abundant number, since it is smaller than the sum of its proper divisors (4580996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4491004 is a wasteful number, since it uses less digits than its factorization.

4491004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617 (or 1615 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 4491004 is about 2119.1989052470. The cubic root of 4491004 is about 164.9862737281.

Adding to 4491004 its reverse (4001944), we get a palindrome (8492948).

The spelling of 4491004 in words is "four million, four hundred ninety-one thousand, four".