2144320 has 28 divisors (see below), whose sum is σ = 5106924. Its totient is φ = 857600.

The previous prime is 2144309. The next prime is 2144323. The reversal of 2144320 is 234412.

It can be written as a sum of positive squares in 2 ways, for example, as 817216 + 1327104 = 904^2 + 1152^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2144294 and 2144303.

It is not an unprimeable number, because it can be changed into a prime (2144323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3031 + ... + 3670.

2^2144320 is an apocalyptic number.

2144320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144320 is an abundant number, since it is smaller than the sum of its proper divisors (2962604).

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

2144320 is an equidigital number, since it uses as much as digits as its factorization.

2144320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718 (or 6708 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2144320 is about 1464.3496850138. The cubic root of 2144320 is about 128.9525294558.

Adding to 2144320 its reverse (234412), we get a palindrome (2378732).

The spelling of 2144320 in words is "two million, one hundred forty-four thousand, three hundred twenty".