4500900 has 72 divisors (see below), whose sum is σ = 14478240. Its totient is φ = 1199520.

The previous prime is 4500883. The next prime is 4500901. The reversal of 4500900 is 90054.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (4500901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1867 + ... + 3533.

Almost surely, 2^4500900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4500900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7239120).

4500900 is an abundant number, since it is smaller than the sum of its proper divisors (9977340).

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

4500900 is a wasteful number, since it uses less digits than its factorization.

4500900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 4500900 is about 2121.5324649885. The cubic root of 4500900 is about 165.1073681352.

Adding to 4500900 its reverse (90054), we get a palindrome (4590954).

The spelling of 4500900 in words is "four million, five hundred thousand, nine hundred".