4500144 has 80 divisors (see below), whose sum is σ = 14106240. Its totient is φ = 1362240.

The previous prime is 4500143. The next prime is 4500161. The reversal of 4500144 is 4410054.

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 (4500143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4279 + ... + 5225.

It is an arithmetic number, because the mean of its divisors is an integer number (176328).

Almost surely, 2^4500144 is an apocalyptic number.

4500144 is a gapful number since it is divisible by the number (44) 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 4500144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7053120).

4500144 is an abundant number, since it is smaller than the sum of its proper divisors (9606096).

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

4500144 is a wasteful number, since it uses less digits than its factorization.

4500144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 4500144 is about 2121.3542844136. The cubic root of 4500144 is about 165.0981234538.

Adding to 4500144 its reverse (4410054), we get a palindrome (8910198).

The spelling of 4500144 in words is "four million, five hundred thousand, one hundred forty-four".