2240320321 has 4 divisors (see below), whose sum is σ = 2240431812. Its totient is φ = 2240208832.

The previous prime is 2240320301. The next prime is 2240320337. The reversal of 2240320321 is 1230230422.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1230230422 = 2 ⋅615115211.

It can be written as a sum of positive squares in 2 ways, for example, as 1252098225 + 988222096 = 35385^2 + 31436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2240320321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2240320301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16300 + ... + 68893.

It is an arithmetic number, because the mean of its divisors is an integer number (560107953).

Almost surely, 2^2240320321 is an apocalyptic number.

It is an amenable number.

2240320321 is a deficient number, since it is larger than the sum of its proper divisors (111491).

2240320321 is an equidigital number, since it uses as much as digits as its factorization.

2240320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111490.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2240320321 is about 47332.0221520273. The cubic root of 2240320321 is about 1308.4888896285.

Adding to 2240320321 its reverse (1230230422), we get a palindrome (3470550743).

It can be divided in two parts, 22403 and 20321, that added together give a palindrome (42724).

The spelling of 2240320321 in words is "two billion, two hundred forty million, three hundred twenty thousand, three hundred twenty-one".