4504640 has 56 divisors (see below), whose sum is σ = 12265152. Its totient is φ = 1543680.

The previous prime is 4504627. The next prime is 4504651. The reversal of 4504640 is 464054.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1235 + ... + 3245.

Almost surely, 2^4504640 is an apocalyptic number.

4504640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4504640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6132576).

4504640 is an abundant number, since it is smaller than the sum of its proper divisors (7760512).

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

4504640 is a wasteful number, since it uses less digits than its factorization.

4504640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035 (or 2025 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 4504640 is about 2122.4137202723. The cubic root of 4504640 is about 165.1530871839.

Adding to 4504640 its reverse (464054), we get a palindrome (4968694).

The spelling of 4504640 in words is "four million, five hundred four thousand, six hundred forty".