2440213 has 2 divisors, whose sum is σ = 2440214. Its totient is φ = 2440212.

The previous prime is 2440211. The next prime is 2440219. The reversal of 2440213 is 3120442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1954404 + 485809 = 1398^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440213 - 2¹ = 2440211 is a prime.

Together with 2440211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2440211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220106 + 1220107.

It is an arithmetic number, because the mean of its divisors is an integer number (1220107).

2^2440213 is an apocalyptic number.

It is an amenable number.

2440213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440213 is an equidigital number, since it uses as much as digits as its factorization.

2440213 is an evil number, because the sum of its binary digits is even.

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

The square root of 2440213 is about 1562.1181133320. The cubic root of 2440213 is about 134.6302272362.

Adding to 2440213 its reverse (3120442), we get a palindrome (5560655).

The spelling of 2440213 in words is "two million, four hundred forty thousand, two hundred thirteen".