2173200144 has 80 divisors (see below), whose sum is σ = 5861380800. Its totient is φ = 692955648.

The previous prime is 2173200137. The next prime is 2173200167. The reversal of 2173200144 is 4410023712.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144567 + ... + 158889.

It is an arithmetic number, because the mean of its divisors is an integer number (73267260).

Almost surely, 2^2173200144 is an apocalyptic number.

2173200144 is a gapful number since it is divisible by the number (24) 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 2173200144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2930690400).

2173200144 is an abundant number, since it is smaller than the sum of its proper divisors (3688180656).

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

2173200144 is a wasteful number, since it uses less digits than its factorization.

2173200144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14472 (or 14466 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2173200144 is about 46617.5947899503. The cubic root of 2173200144 is about 1295.2886947982.

Adding to 2173200144 its reverse (4410023712), we get a palindrome (6583223856).

The spelling of 2173200144 in words is "two billion, one hundred seventy-three million, two hundred thousand, one hundred forty-four".