2400321213 has 12 divisors (see below), whose sum is σ = 3586687260. Its totient is φ = 1545034176.

The previous prime is 2400321191. The next prime is 2400321221. The reversal of 2400321213 is 3121230042.

It can be written as a sum of positive squares in 2 ways, for example, as 447830244 + 1952490969 = 21162^2 + 44187^2 .

It is not a de Polignac number, because 2400321213 - 2⁵ = 2400321181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400320213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4598056 + ... + 4598577.

It is an arithmetic number, because the mean of its divisors is an integer number (298890605).

Almost surely, 2^2400321213 is an apocalyptic number.

It is an amenable number.

2400321213 is a deficient number, since it is larger than the sum of its proper divisors (1186366047).

2400321213 is a wasteful number, since it uses less digits than its factorization.

2400321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196668 (or 9196665 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2400321213 is about 48993.0731124309. The cubic root of 2400321213 is about 1338.9256282126.

Adding to 2400321213 its reverse (3121230042), we get a palindrome (5521551255).

The spelling of 2400321213 in words is "two billion, four hundred million, three hundred twenty-one thousand, two hundred thirteen".