4499990 has 24 divisors (see below), whose sum is σ = 8905680. Its totient is φ = 1635920.

The previous prime is 4499969. The next prime is 4500007. The reversal of 4499990 is 999944.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 650 + ... + 3069.

It is an arithmetic number, because the mean of its divisors is an integer number (371070).

Almost surely, 2^4499990 is an apocalyptic number.

4499990 is a deficient number, since it is larger than the sum of its proper divisors (4405690).

4499990 is a wasteful number, since it uses less digits than its factorization.

4499990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748 (or 3737 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 4499990 is about 2121.3179865357. The cubic root of 4499990 is about 165.0962401510.

It can be divided in two parts, 4 and 499990, that added together give a palindrome (499994).

The spelling of 4499990 in words is "four million, four hundred ninety-nine thousand, nine hundred ninety".