2440404444213 has 12 divisors (see below), whose sum is σ = 3582815997228. Its totient is φ = 1600265208960.

The previous prime is 2440404444143. The next prime is 2440404444299. The reversal of 2440404444213 is 3124444040442.

It is a happy number.

2440404444213 is a `hidden beast` number, since 244 + 0 + 404 + 4 + 4 + 4 + 2 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1143580000689 + 1296824443524 = 1069383^2 + 1138782^2 .

It is not a de Polignac number, because 2440404444213 - 2²⁶ = 2440337335349 is a prime.

It is a super-2 number, since 2×2440404444213² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440404440213) 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, 2222590020 + ... + 2222591117.

It is an arithmetic number, because the mean of its divisors is an integer number (298567999769).

Almost surely, 2^{2440404444213} is an apocalyptic number.

It is an amenable number.

2440404444213 is a deficient number, since it is larger than the sum of its proper divisors (1142411553015).

2440404444213 is a wasteful number, since it uses less digits than its factorization.

2440404444213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445181204 (or 4445181201 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 36.

Adding to 2440404444213 its reverse (3124444040442), we get a palindrome (5564848484655).

The spelling of 2440404444213 in words is "two trillion, four hundred forty billion, four hundred four million, four hundred forty-four thousand, two hundred thirteen".