4509920 has 48 divisors (see below), whose sum is σ = 10831968. Its totient is φ = 1774080.

The previous prime is 4509919. The next prime is 4509931. The reversal of 4509920 is 299054.

4509920 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 11162 + ... + 11558.

It is an arithmetic number, because the mean of its divisors is an integer number (225666).

Almost surely, 2^4509920 is an apocalyptic number.

4509920 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 4509920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5415984).

4509920 is an abundant number, since it is smaller than the sum of its proper divisors (6322048).

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

4509920 is a wasteful number, since it uses less digits than its factorization.

4509920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 4509920 is about 2123.6572228116. The cubic root of 4509920 is about 165.2175886625.

The spelling of 4509920 in words is "four million, five hundred nine thousand, nine hundred twenty".